Roget's Thesaurus

Part 24

Chapter 24 3,267 words Public domain Markdown

(iii) PERCEPTIONS OF LIGHT

#441. Vision.—N. vision, sight, optics, eyesight. view, look, espial[obs3], glance, ken, coup d'oeil[Fr]; glimpse, glint, peep; gaze, stare, leer; perlustration[obs3], contemplation; conspection|, conspectuity|; regard, survey; introspection; reconnaissance, speculation, watch, espionage, espionnage[Fr], autopsy; ocular inspection, ocular demonstration; sight-seeing. point of view; gazebo, loophole, belvedere, watchtower. field of view; theater, amphitheater, arena, vista, horizon; commanding view, bird's eye view; periscope. visual organ, organ of vision; eye; naked eye, unassisted eye; retina, pupil, iris, cornea, white; optics, orbs; saucer eyes, goggle eyes, gooseberry eyes. short sight &c. 443; clear sight, sharp sight, quick sight, eagle sight, piercing sight, penetrating sight, clear glance, sharp glance, quick glance, eagle glance, piercing glance, penetrating glance, clear eye, sharp eye, quick eye, eagle eye, piercing eye, penetrating eye; perspicacity, discernment; catopsis[obs3]. eagle, hawk; cat, lynx; Argus[obs3]. evil eye; basilisk, cockatrice [Mythical]. V. see, behold, discern, perceive, have in sight, descry, sight, make out, discover, distinguish, recognize, spy, espy, ken; get a sight of, have a sight of, catch a sight of, get a glimpse of, have a glimpse of, catch a glimpse of; command a view of; witness, contemplate, speculate; cast the eyes on, set the eyes on; be a spectator &c. 444 of; look on &c. (be present) 186; see sights &c. (curiosity) 455; see at a glance &c. (intelligence) 498. look, view, eye; lift up the eyes, open one's eye; look at, look on, look upon, look over, look about one, look round; survey, scan, inspect; run the eye over, run the eye through; reconnoiter, glance round, glance on, glance over turn one's looks upon, bend one's looks upon; direct the eyes to, turn the eyes on, cast a glance. observe &c. (attend to) 457; watch &c. (care) 459; see with one's own eyes; watch for &c. (expect) 507; peep, peer, pry, take a peep; play at bopeep[obs3]. look full in the face, look hard at, look intently; strain one's eyes; fix the eyes upon, rivet the eyes upon; stare, gaze; pore over, gloat on; leer, ogle, glare; goggle; cock the eye, squint, gloat, look askance. Adj. seeing &c. v.; visual, ocular; optic, optical; ophthalmic. clear-eyesighted &c. n.; eagle-eyed, hawk-eyed, lynx-eyed, keen-eyed, Argus-eyed. visible &c. 446. Adv. visibly &c. 446; in sight of, with one's eyes open at sight, at first sight, at a glance, at the first blush; prima facie[Lat]. Int. look! &c. (attention) 457. Phr. the scales falling from one's eyes; "an eye like Mars to threaten or command" [Hamlet]; "her eyes are homes of silent prayer" [Tennyson]; "looking before and after" [Hamlet]; "thy rapt soul sitting in thine eyes" [Milton].

#442. Blindness.—N. blindness, cecity[obs3], excecation|, amaurosis[obs3], cataract, ablepsy|, ablepsia[obs3], prestriction|; dim- sightedness &c. 443; Braille, Braille-type; guttaserena ("drop serene"), noctograph[obs3], teichopsia[obs3]. V. be blind &c. adj.; not see; lose sight of; have the eyes bandaged; grope in the dark. not look; close the eyes, shut the eyes-, turn away the eyes, avert the eyes; look another way; wink &c. (limited vision) 443; shut the eyes to, be blind to, wink at, blink at. render blind &c. adj.; blind, blindfold; hoodwink, dazzle, put one's eyes out; throw dust into one's eyes, pull the wool over one's eyes; jeter de la poudre aux yeux[Fr]; screen from sight &c. (hide) 528. Adj. blind; eyeless, sightless, visionless; dark; stone-blind, sand- blind, stark-blind; undiscerning[obs3]; dimsighted &c. 443. blind as a bat, blind as a buzzard, blind as a beetle, blind as a mole, blind as an owl; wall-eyed. blinded &c. v. Adv. blindly, blindfold, blindfolded; darkly. Phr. "O dark, dark, dark, amid the blaze of noon" [Milton].

#443. [Imperfect vision.] Dimsightedness. [Fallacies of vision.]—N. dim sight, dull sight half sight, short sight, near sight, long sight, double sight, astigmatic sight, failing sight; dimsightedness &c.; purblindness, lippitude[obs3]; myopia, presbyopia[obs3]; confusion of vision; astigmatism; color blindness, chromato-pseudo-blepsis[obs3], Daltonism; nyctalopia[obs3]; strabismus, strabism[obs3], squint; blearedness[obs3], day blindness, hemeralopia[obs3], nystagmus; xanthocyanopia[obs3], xanthopsia[Med]; cast in the eye, swivel eye, goggle- eyes; obliquity of vision. winking &c. v.; nictitation; blinkard[obs3], albino. dizziness, swimming, scotomy[obs3]; cataract; ophthalmia. [Limitation of vision] blinker; screen &c. (hider) 530. [Fallacies of vision] deceptio visus[Lat]; refraction, distortion, illusion, false light, anamorphosis[obs3], virtual image, spectrum, mirage, looming, phasma|; phantasm, phantasma[obs3], phantom; vision; specter, apparition, ghost; ignis fatuus &c. (luminary) 423 specter of the Brocken magic mirror[Lat]; magic lantern &c. (show) 448; mirror lens &c. (instrument) 445. V. be dimsighted &c. n.; see double; have a mote in the eye, have a mist before the eyes, have a film over the eyes; see through a prism, see through a glass darkly; wink, blink, nictitate; squint; look askant[obs3], askant askance[obs3]; screw up the eyes, glare, glower; nictate[obs3]. dazzle, loom. Adj. dim-sighted &c. n.; myopic, presbyopic[obs3]; astigmatic moon- eyed, mope-eyed, blear-eyed, goggle-eyed, gooseberry-eyed, one-eyed; blind of one eye, monoculous[obs3]; half-blind, purblind; cock-eyed, dim-eyed, mole-eyed; dichroic. blind as a bat &c. (blind) 442; winking &c. v.

#444. Spectator.—N. spectator, beholder, observer, looker-on, onlooker, witness, eyewitness, bystander, passer by; sightseer; rubberneck * [U. S.]. spy; sentinel &c. (warning) 668. V. witness, behold &c. (see) 441; look on &c. (be present) 186; gawk, rubber *, rubberneck *[U.S.].

#445. Optical Instruments.—N. optical instruments; lens, meniscus, magnifier, sunglass, magnifying glass, hand lens; microscope, megascope[obs3], tienoscope[obs3]. spectacles, specs [coll.],glasses, barnacles, goggles, eyeglass, pince-nez, monocle, reading glasses, bifocals; contact lenses, soft lenses, hard lenses; sunglasses, shades[coll.]. periscopic lens[obs3]; telescope, glass, lorgnette; spyglass, opera glass, binocular, binoculars, field glass; burning glass, convex lens, concave lens, convexo-concave lens[obs3], coated lens, multiple lens, compound lens, lens system, telephoto lens, wide-angle lens, fish-eye lens, zoom lens; optical bench. astronomical telescope, reflecting telescope, reflector, refracting telescope, refractor, Newtonian telescope, folded-path telescope, finder telescope, chromatoscope; X-ray telescope; radiotelescope, phased-array telescope, Very Large Array radiotelescope; ultraviolet telescope; infrared telescope; star spectroscope; space telescope. [telescope mounts] altazimuth mount, equatorial mount. refractometer, circular dichroism spectrometer. interferometer. phase-contrast microscope, fluorescence microscope, dissecting microscope; electron microscope, transmission electron microscope; scanning electron microscope, SEM; scanning tunneling electron microscope. [microscope components] objective lens, eyepiece, barrel, platform, focusing knob; slide, slide glass, cover glass, counting chamber; illuminator, light source, polarizer, [component parts of telescopes] reticle, cross-hairs. light pipe, fiber optics mirror, reflector, speculum; looking-glass, pier-glass, cheval-glass, rear-view mirror, hand mirror, one-way mirror, magnifying mirror. [room with distorting mirrors] fun house. prism, diffraction grating; beam splitter, half-wave plate, quarter- wave plate. camera lucida[Lat], camera obscura[Lat]; magic lantern &c. (show) 448; stereopticon; chromatrope[obs3], thaumatrope[obs3]; stereoscope, pseudoscope[obs3], polyscope[obs3], kaleidoscope. photometer, eriometer[obs3], actinometer[obs3], lucimeter[obs3], radiometer; ligth detector, photodiode, photomultiplier, photodiode array, photocell. X-ray diffractometer, goniometer. spectrometer, monochrometer, UV spectrometer, visible spectrometer, Infrared spectrometer, Fourier transform infrared spectrometer, recording spectrometer; densitometer, scanning densitometer, two-dimensional densitometer. abdominoscope[obs3], gastroscope[Med], helioscope[obs3], polariscope[obs3], polemoscope[obs3], spectroscope. abdominoscopy[obs3]; gastroscopy[Med]; microscopy, microscopist.

#446. Visibility.—N. visibility, perceptibility; conspicuousness, distinctness &c. adj.; conspicuity[obs3], conspicuousness; appearance &c. 448; bassetting[obs3]; exposure; manifestation &c. 525; ocular proof, ocular evidence, ocular demonstration; field of view &c. (vision) 441; periscopism[obs3]. V. be become visible &c. adj.; appear, open to the view; meet the eye, catch the eye; basset; present itself, show manifest itself, produce itself, discover itself, reveal itself, expose itself, betray itself; stand forth, stand out; materialize; show; arise; peep out, peer out, crop out; start up, spring up, show up, turn up, crop up; glimmer, loom; glare; burst forth; burst upon the view, burst upon the sight; heave in sight; come in sight, come into view, come out, come forth, come forward; see the light of day; break through the clouds; make its appearance, show its face, appear to one's eyes, come upon the stage, float before the eyes, speak for itself &c. (manifest) 525; attract the attention &c. 457; reappear; live in a glass house. expose to view &c. 525. Adj. visible, perceptible, perceivable, discernible, apparent; in view, in full view, in sight; exposed to view, en evidence; unclouded, unobscured[obs3], in the foreground. obvious &c. (manifest) 525; plain, clear, distinct, definite; well defined, well marked; in focus; recognizable, palpable, autoptical[obs3]; glaring, staring, conspicuous; stereoscopic; in bold, in strong relief. periscopic[obs3], panoramic. before one's eyes, under one's eyes; before one, vue d'oeil[Fr], in one's eye, oculis subjecta fidelibus[Lat]. Adv. visibly &c. adj.; in sight of; before one's eyes &c. adj.; veluti in speculum[Lat].

#447. Invisibility.—N. invisibility, invisibleness, nonappearance, # imperceptibility; indistinctness &c. adj.; mystery, delitescence[obs3]. concealment &c. 528; latency &c. 526. V. be invisible &c. adj.; be hidden &c. (hide) 528; lurk &c. (lie hidden) 526; escape notice. render invisible &c. adj.; conceal &c. 528; put out of sight. not see &c. (be blind) 442; lose sight of. Adj. invisible, imperceptible; undiscernible[obs3], indiscernible; unapparent, non-apparent; out of sight, not in sight; a perte de vue[French]; behind the scenes, behind the curtain; viewless, sightless; inconspicuous, unconspicuous[obs3]; unseen &c. (see see &c. 441); covert &c. (latent) 526; eclipsed, under an eclipse. dim &c. (faint) 422; mysterious, dark, obscure, confused; indistinct, indistinguishable; shadowy, indefinite, undefined; ill-defined, ill-marked; blurred, fuzzy, out of focus; misty &c. (opaque) 426; delitescent[obs3]. hidden, obscured, covered, veiled (concealed) 528. Phr. "full many a flower is born to blush unseen" [Gray].

#448. Appearance.—N. appearance, phenomenon, sight, spectacle, show, premonstration|, scene, species, view, coup d'oeil[Fr]; lookout, outlook, prospect, vista, perspective, bird's-eye view, scenery, landscape, picture, tableau; display, exposure, mise en scene[Fr]; rising of the curtain. phantasm, phantom &c. (fallacy of vision) 443. pageant, spectacle; peep-show, raree-show, gallanty-show; ombres chinoises[Sp]; magic lantern, phantasmagoria, dissolving views; biograph[obs3], cinematograph, moving pictures; panorama, diorama, cosmorama[obs3], georama[obs3]; coup de theatre, jeu de theatre[Fr]; pageantry &c. (ostentation) 882; insignia &c. (indication) 550. aspect, angle, phase, phasis[obs3], seeming; shape &c. (form) 240; guise, look, complexion, color, image, mien, air, cast, carriage, port, demeanor; presence, expression, first blush, face of the thing; point of view, light. lineament feature trait lines; outline, outside; contour, face, countenance, physiognomy, visage, phiz[obs3],. cast of countenance, profile, tournure[obs3], cut of one's jib, metoposcopy[obs3]; outside &c. 220. V. appear; be visible, become visible &c. 446; seem, look, show; present the appearance of, wear the appearance of, carry the appearance of, have the appearance of, bear the appearance of, exhibit the appearance of, take the appearance of, take on the appearance of, assume the appearance, present the semblance of, wear the semblance of, carry the semblance of, have the semblance of, bear the semblance of, exhibit the semblance of, take the semblance of, take on the semblance of, assume the semblance of; look like; cut a figure, figure; present to the view; show &c. (make manifest) 525. Adj. apparent, seeming, ostensible; on view. Adv. apparently; to all seeming, to all appearance; ostensibly, seemingly, as it seems, on the face of it, prima facie [Lat]; at the first blush, at first sight; in the eyes of; to the eye. Phr. editio princeps [Lat].

#449. Disappearance.—N. disappearance, evanescence, eclipse, # occultation. departure &c. 293; exit; vanishing point; dissolving views. V. disappear, vanish, dissolve, fade, melt away, pass, go, avaunt[obs3], evaporate, vaporize; be gone &c. adj.; leave no trace, leave "not a rack behind" [Tempest]; go off the stage &c. (depart) 293; suffer an eclipse, undergo an eclipse; retire from sight; be lost to view, pass out of sight. lose sight of. efface &c. 552. Adj. disappearing &c. v.; evanescent; missing, lost; lost to sight, lost to view; gone. Int. vanish! disappear! avaunt[obs3]! get lost! get out of here &c. (ejection) 297.

CLASS IV WORDS RELATING TO THE INTELLECTUAL FACULTIES

DIVISION (I) FORMATION OF IDEAS

SECTION I. OPERATIONS OF INTELLECT IN GENERAL

#450. Intellect.—N. intellect, mind, understanding, reason, thinking principle; rationality; cogitative faculties, cognitive faculties, discursive faculties, reasoning faculties, intellectual faculties; faculties, senses, consciousness, observation, percipience, intelligence, intellection, intuition, association of ideas, instinct, conception, judgment, wits, parts, capacity, intellectuality, genius; brains, cognitive powers, intellectual powers; wit &c. 498; ability &c. (skill) 698; wisdom &c. 498; Vernunft[Ger], Verstand[Ger]. soul, spirit, ghost, inner man, heart, breast, bosom, penetralia mentis[Lat], divina particula aurae[Lat], heart's core; the Absolute, psyche, subliminal consciousness, supreme principle. brain, organ of thought, seat of thought; sensorium[obs3], sensory; head, headpiece; pate, noddle[obs3], noggin, skull, scull, pericranium[Med], cerebrum, cranium, brainpan[obs3], sconce, upper story. [in computers] central processing unit, CPU; arithmetic and logical unit, ALU. [Science of mind] metaphysics; psychics, psychology; ideology; mental philosophy, moral philosophy; philosophy of the mind; pneumatology[obs3], phrenology; craniology[Med], cranioscopy[Med]. ideality, idealism; transcendentalism, spiritualism; immateriality &c. 317; universal concept, universal conception. metaphysician, psychologist &c. V. note, notice, mark; take notice of, take cognizance of be aware of, be conscious of; realize; appreciate; ruminate &c. (think) 451; fancy &c. (imagine) 515. Adj. intellectual[Relating to intellect], mental, rational, subjective, metaphysical, nooscopic[obs3], spiritual; ghostly; psychical[obs3], psychological; cerebral; animastic[obs3]; brainy; hyperphysical[obs3], superphysical[obs3]; subconscious, subliminal. immaterial &c. 317; endowed with reason. Adv. in petto. Phr. ens rationis [Lat]; frons est animi janua [Lat][Cicero]; locos y ninos dicen la verdad [Sp]; mens sola loco non exulat [Lat][Ovid]; "my mind is my kingdom" [Campbell]; "stern men with empires in their brains" [Lowell]; "the mind, the music breathing from her face" [Byron]; "thou living ray of intellectual Fire" [Falconer].

#450a. Absence or want of Intellect.—N. absence of intellect, want # of intellect &c. 450; imbecility &c. 499.: brutality, brute force. instinct, brute instinct, stimulus-response loop, conditioned response, instinctive reaction, Pavlovian response. mimicry, aping (imitation) 19. moron, imbecile, idiot; fool &c. 501; dumb animal; vegetable, brain- dead. Adj. unendowed with reason, void of reason; thoughtless; vegetative; moronic, idiotic, brainless [all pejorative]. Adv. instinctively, like Pavlov's dog; vegetatively. V. mimic, ape (imitate) 19; respond instinctively.

#451. Thought.—N. thought; exercitation of the intellect[obs3], exercise of the intellect; intellection; reflection, cogitation, consideration, meditation, study, lucubration, speculation, deliberation, pondering; head work, brain work; cerebration; deep reflection; close study, application &c. (attention) 457. abstract thought, abstraction contemplation, musing; brown study &c. (inattention) 458; reverie, Platonism; depth of thought, workings of the mind, thoughts, inmost thoughts; self-counsel self-communing, self- consultation; philosophy of the Absolute, philosophy of the Academy, philosophy of the Garden, philosophy of the lyceum, philosophy of the Porch. association of thought, succession of thought, flow of thought, train of thought, current of thought, association of ideas, succession of ideas, flow of ideas, train of ideas, current of ideas. after thought, mature thought; reconsideration, second thoughts; retrospection &c. (memory) 505; excogitation[obs3]; examination &c. (inquiry) 461 invention &c. (imagination) 515. thoughtfulness &c. adj. V. think, reflect, cogitate, excogitate[obs3], consider, deliberate; bestow thought upon, bestow consideration upon; speculate, contemplate, meditate, ponder, muse, dream, ruminate; brood over, con over; animadvert, study; bend -, apply mind &c. (attend) 457; digest, discuss, hammer at, weigh, perpend; realize, appreciate; fancy &c. (imagine) 515; trow[obs3]. take into consideration; take counsel &c. (be advised) 695; commune with oneself, bethink oneself; collect one's thoughts; revolve in the mind, turn over in the mind, run over in the mind; chew the cud upon, sleep upon; take counsel of one's pillow, advise with one's pillow. rack one's brains, ransack one's brains, crack one's brains, beat one's brains, cudgel one's brains; set one's brain to work, set one's wits to work. harbor an idea, entertain an idea, cherish an idea, nurture an idea &c. 453; take into one's head; bear in mind; reconsider. occur; present itself, suggest itself; come into one's head, get into one's head; strike one, flit across the view, come uppermost, run in one's head; enter the mind, pass in the mind, cross the mind, flash on the mind, flash across the mind, float in the mind, fasten itself on the mind, be uppermost in the mind, occupy the mind; have in one's mind. make an impression; sink into the mind, penetrate into the mind; engross the thoughts. Adj. thinking &c. v.; thoughtful, pensive, meditative, reflective, museful[obs3], wistful, contemplative, speculative, deliberative, studious, sedate, introspective, Platonic, philosophical. lost in thought &c. (inattentive) 458; deep musing &c. (intent) 457. in the mind, under consideration. Adv. all things considered. Phr. the mind being on the stretch; the mind turning upon, the head turning upon, the mind running upon; "divinely, bent to meditation" [Richard III]; en toute chose il faut considerer la fin[Fr][obs3]; "fresh- pluckt from bowers of never-failing thought" [O. Meredith]; "go speed the stars of Thought"[Emerson]; "in maiden meditation fancy-free" [M. N. D.]; "so sweet is zealous contemplation" [Richard III]; "the power of thought is the magic of the Mind" [Byron]; "those that think must govern those that toil" [Goldsmith]; "thought is parent of the deed" [Carlyle]; "thoughts in attitudes imperious" [Longfellow]; "thoughts that breathe and words that burn" [Gray]; vivere est cogitare [Lat][Cicero]; Volk der Dichter und Denker [Ger].

#452. [Absence or want of thought.] Incogitancy.—N. # incogitancy[obs3], vacancy, inunderstanding[obs3]; fatuity &c. 499; thoughtlessness &c. (inattention) 458; vacuity. couch potato, vegetable. V. not think &c. 451; not think of; dismiss from the mind, dismiss from the thoughts &c. 451. indulge in reverie &c. (be inattentive) 458. put away thought; unbend the mind, relax the mind, divert the mind, veg out. Adj. vacant, unintellectual, unideal[obs3], unoccupied, unthinking, inconsiderate, thoughtless, mindless, no-brain, vacuous; absent &c. (inattentive) 458; diverted; irrational &c. 499; narrow-minded &c. 481. unthought of, undreamt 'of, unconsidered; off one's mind; incogitable[obs3], not to be thought of. Phr. absence d'esprit; pabulum pictura pascit inani[Lat][obs3].

#453. [Object of thought.] Idea.—N. idea, notion, conception, thought, apprehension, impression, perception, image, εἴδωλον[Grk], sentiment, reflection, observation, consideration; abstract idea; archetype, formative notion; guiding conception, organizing conception; image in the mind, regulative principle. view &c. (opinion) 484; theory &c. 514; conceit, fancy; phantasy &c. (imagination) 515.point of view &c. (aspect) 448; field of view.

#454. [Subject of thought, νοήματα Topic. N.—subject of—, material for thought; food for the mind, mental pabulum. subject, subject matter; matter, theme, νοήματα[Grk], topic, what it is about, thesis, text, business, affair, matter in hand, argument; motion, resolution; head, chapter; case, point; proposition, theorem; field of inquiry; moot point, problem &c. (question) 461. V. float in the mind, pass in the mind &c. 451. Adj. thought of; uppermost in the mind; in petto. Adv. under consideration; in question, in the mind; on foot, on the carpet, on the docket, on the tapis[obs3]; relative to &c. 9.

SECTION II. PRECURSORY CONDITIONS AND OPERATIONS

#455. [The desire of knowledge.] Curiosity.—N. interest, thirst for knowledge, thirst for truth; curiosity, curiousness; inquiring mind; inquisitiveness. omnivorous intellect, devouring mind. [person who desires knowledge] inquirer; sightseer; quidnunc[Lat], newsmonger, Paul Pry, eavesdropper; gossip &c. (news) 532; rubberneck; intellectual; seeker[inquirer after religious knowledge], seeker after truth. V. be curious &c. adj.; take an interest in, stare, gape; prick up the ears, see sights, lionize; pry; nose; rubberneck*[U. S.]. Adj. curious, inquisitive, burning with curiosity, overcurious; inquiring &c. 461; prying, snoopy, nosy, peering; prurient; inquisitorial, inquisitory[obs3]; curious as a cat; agape &c. (expectant) 507. Phr. what's the matter? what next? consumed with curiosity; curiosity killed the cat, satisfaction brought it back. "curiouser and curiouser" [Alice in Wonderland].

#456. [Absence of curiosity.] Incuriosity.—N. incuriosity, incuriousness &c. adj.; insouciance &c. 866; indifference, lack of interest, disinterest. boredom, ennui (weariness) 841; satiety &c. 639; foreknowledge (foresight) 510. V. be incurious &c. adj.; have no curiosity &c. 455; take no interest in &c. 823; mind one's own business. Adj. incurious, uninquisitive, indifferent; impassive &c. 823; uninterested, detached, aloof.