Chapter 1230

Pseu`do*te*tram"e*ra (?) , n. pl. [NL. See Pseudo- , and Tetramerous .] (Zo\'94l.) A division of beetles having the fifth tarsal joint minute and obscure, so that there appear to be but four joints. -- Pseu`do*te*tram"er*al (#) , a.

Pseudotinea <Xpage=1157>

Pseu`do*tin"e*a (<?/) , n. ; pl. Pseudotine\'91 (#) . [NL. See Pseudo- , and Tinea .] (Zo\'94l.) The bee moth, or wax moth ( Galleria ).

Pseudoturbinal <Xpage=1157>

Pseu`do*tur"bi*nal (?) , a. [ Pseudo- + turbinal .] (Anat.) See under Turbinal .

Pseudovary <Xpage=1157>

Pseu*do"va*ry (?) , n. ; pl. Pseudovaries (#) . [ Pseudo- + ovary .] (Zo\'94l.) The organ in which pseudova are produced; -- called also pseudovarium .

Pseudovum <Xpage=1157>

Pseu*do"vum (?) , n. ; pl. Pseudova (#) . [NL. See Pseudo- , and Ovum .] (Zo\'94l.) An egglike germ produced by the agamic females of some insects and other animals, and by the larv\'91 of certain insects. It is capable of development without fertilization. See Illust . of P\'91dogenesis .

Pshaw <Xpage=1157>

Pshaw (?) , interj. [Of imitative origin.] Pish! pooch! -- an exclamation used as an expression of contempt, disdain, dislike, etc. [Written also psha .]

Pshaw <Xpage=1157>

Pshaw (?) , v. i. To express disgust or contemptuous disapprobation, as by the exclamation " Pshaw !"

The goodman used regularly to frown and pshaw wherever this topic was touched upon. Sir W. Scott.

Psilanthropic <Xpage=1157>

Psi`lan*throp"ic (?) , a. [see Psilanthropist .] Pertaining to, or embodying, psilanthropy. "A psilanthropic explanation."

Coleridge.

Psilanthropism <Xpage=1157>

Psi*lan"thro*pism (?) , n. Psilanthropy.

Psilanthropist <Xpage=1157>

Psi*lan"thro*pist (?) , n. [Gr. <?/ bare, mere + <?/ a man.] One who believes that Christ was a mere man.

Smart.

Psilanthropy <Xpage=1157>

Psi*lan"thro*py (?) , n. The doctrine of the merely human existence of Christ.

Psilology <Xpage=1157>

Psi*lol"o*gy (?) , n. [Gr <?/ mere + -logy .] Love of empty of empty talk or noise.

Coleridge.

Psilomelane <Xpage=1157>

Psi*lom"e*lane (?) , n. [Gr. <?/ bare + <?/, <?/, black.] (Min.) A hydrous oxide of manganese, occurring in smooth, botryoidal forms, and massive, and having an iron-black or steel-gray color.

Psilop\'91des <Xpage=1157>

Psi`lo*p\'91"des (?) , n. pl. [NL., from Gr.<?/ bare + <?/, <?/, offspring.] (Zo\'94l.) birds whose young at first have down on the pteryl\'91 only; -- called also Gymnop\'91des .

Psilop\'91dic <Xpage=1157>

Psi`lo*p\'91d"ic (?) , a. (Zo\'94l.) Having down upon the pteryl\'91 only; -- said of the young of certain birds.

Psilosopher <Xpage=1157>

Psi*los"o*pher , n. [Gr. <?/ bare, mere + <?/ wise.] A superficial or narrow pretender to philosophy; a sham philosopher.

Psittaceous, Psittacid <Xpage=1157>

Psit*ta"ceous (?) , Psit"ta*cid (?) , a. [L. psittacus a parrot, Gr. <?/: cf. F. psittacide .] (Zo\'94l.) Of or pertaining to the parrots, or the Psittaci. -- n. One of the Psittaci.

Psittaci <Xpage=1157>

Psit"ta*ci (?) , n. pl. [NL.] (Zo\'94l.) The order of birds which comprises the parrots.

Psitta-co-fulvine <Xpage=1157>

Psit`ta-co-ful"*vine (?) , n. [Gr. <?/ a parrot + L. fulvus yellow.] A yellow pigment found in the feathers of certain parrots.

Psoas <Xpage=1157>

Pso"as (?) , n. [Gr. <?/ a muscle of the loin: cf. f. psoas .] (Anat.) An internal muscle arising from the lumbar vertebr\'91 and inserted into the femur. In man there are usually two on each side, and the larger one, or great psoas, forms a part of the iliopsoas.

Psora <Xpage=1157>

Pso"ra (?) , n. [L., fr. Gr. <?/.] (Med.) A cutaneous disease; especially, the itch.

Psoriasis <Xpage=1157>

Pso*ri"a*sis (?) , n. [NL., fr. Gr. <?/, fr. <?/ psora.] (Med.) (a) The state of being affected with psora. [Obs.] (b) A cutaneous disease, characterized by imbricated silvery scales, affecting only the superficial layers of the skin.

Psoric <Xpage=1157>

Pso"ric (?) , a. [L. psoricus , Gr. <?/: cf. F. psorique .] (Med.) Of or pertaining to psora.

Psorosperm <Xpage=1157>

Pso"ro*sperm (?) , n. [Gr. <?/ itching + <?/ seed.] (Zo\'94l.) A minute parasite, usually the young of Gregarin\'91, in the pseudonavicula stage.

Psychagogic <Xpage=1157>

Psy`cha*gog"ic (?) , a. [Gr. <?/. See Psychagogue .] Attractive; persuasive.

J. Morley.

Psychagogue <Xpage=1157>

Psy"cha*gogue (?) , n. [Gr.<?/; <?/ the soul + <?/ to lead.] A necromancer. [R.]

Psychal <Xpage=1157>

Psy"chal (?) , a. [See Psychical .] Of or pertaining to the soul; psychical.

Bayne.

Psyche <Xpage=1157>

Psy"che (?) , n. [L., fr. Gr. <?/ Psyche, fr. <?/ the soul.] 1. (Class Myth.) A lovely maiden, daughter of a king and mistress of Eros, or Cupid. She is regarded as the personification of the soul.

2. The soul; the vital principle; the mind.

3. [F. psych\'82 .] A cheval glass.

Psychian <Xpage=1157>

Psy"chi*an (?) , n. (Zo\'94l.) Any small moth of the genus Psyche and allied genera (family Psychid\'91 ). The larv\'91 are called basket worms . See Basket worm , under Basket .

Psychiatria, Psychiatry <Xpage=1157>

Psy*chi`a*tri"a (?) , Psy*chi"a*try (?) , n. [NL. psychiatria , fr. Gr. <?/ the mind + <?/ healing.] (Med.) The application of the healing art to mental diseases.

Dunglison.

Psychiatric <Xpage=1157>

Psy`chi*at"ric (?) , a. (Med.) Of or pertaining to psychiatria.

Psychic, Psychical <Xpage=1157>

Psy"chic (?) , Psy"chic*al (?) , a. [L. psychicus , Gr. <?/, fr. <?/ the soul, mind; cf. <?/ to blow: cf. F. psychique .] 1. Of or pertaining to the human soul, or to the living principle in man.

&hand; This term was formerly used to express the same idea as psychological . Recent metaphysicians, however, have employed it to mark the difference between psychh` the living principle in man, and pney^ma the rational or spiritual part of his nature. In this use, the word describes the human soul in its relation to sense, appetite, and the outer visible world, as distinguished from spiritual or rational faculties, which have to do with the supersensible world. Heyse.

2. Of or pertaining to the mind, or its functions and diseases; mental; -- contrasted with physical .

Psychical blindness , Psychical deafness (Med.) , forms of nervous disease in which, while the senses of sight and hearing remain unimpaired, the mind fails to appreciate the significance of the sounds heard or the images seen. -- Psychical contagion , the transference of disease, especially of a functional nervous disease, by mere force of example. -- Psychical medicine , that department of medicine which treats of mental diseases. <-- psychiatry? -->

Psychics <Xpage=1157>

Psy"chics (?) , n. Psychology.

Psychism <Xpage=1157>

Psy"chism (?) , n. [Cf. F. psychisme .] (Philos.) The doctrine of Quesne, that there is a fluid universally diffused, end equally animating all living beings, the difference in their actions being due to the difference of the individual organizations.

Fleming.

<page="1158"> Page 1158

Psycho- <Xpage=1158>

Psy"cho- (?) . A combining form from Gr. <?/ the soul , the mind , the understanding ; as, psycho logy .

Psychogenesis <Xpage=1158>

Psy`cho*gen"e*sis (?) , n. Genesis through an internal force, as opposed to natural selection .

Psychography <Xpage=1158>

Psy*chog"ra*phy (?) , n. [ Psycho- + -graphy .] 1. A description of the phenomena of mind.

2. (Spiritualism) Spirit writing.

Psychologic, Psychological <Xpage=1158>

Psy`cho*log"ic (?) , Psy`cho*log"ic*al (?) , a. [Cf. F. psychologique .] Of or pertaining to psychology. See Note under Psychic . -- Psy`cho*log"ic*al*ly , adv.

Psychologist <Xpage=1158>

Psy*chol"o*gist (?) , n. [Cf. F. psychologiste .] One who is versed in, devoted to, psychology.

Psychologue <Xpage=1158>

Psy"cho*logue (?) , n. A psychologist.

Psychology <Xpage=1158>

Psy*chol"o*gy (?) , n. pl. Psychologies (<?/) . [ Psycho- + -logy : cf. F. psychologie . See Psychical .] The science of the human soul; specifically, the systematic or scientific knowledge of the powers and functions of the human soul, so far as they are known by consciousness; a treatise on the human soul.

Psychology , the science conversant about the phenomena of the mind, or conscious subject, or self. Sir W. Hamilton.

Psychomachy <Xpage=1158>

Psy*chom"a*chy (?) , n. [L. psychomachia , fr. Gr. <?/ the soul + <?/ fight: cf. <?/ desperate fighting.] A conflict of the soul with the body.

Psychomancy <Xpage=1158>

Psy"cho*man`cy (?) , n. [ Psycho- + -mancy : cf. F. psychomancie .] Necromancy.

Psychometry <Xpage=1158>

Psy*chom"e*try (?) , n. [ Psycho- + -metry .] (Physiol.) The art of measuring the duration of mental processes, or of determining the time relations of mental phenomena. -- Psy`cho*met"ric (#) , a.

Psycho-motor <Xpage=1158>

Psy`cho-mo"tor (?) , a. [ Psycho- + motor .] Of or pertaining to movement produced by action of the mind or will.

Psychopannychism <Xpage=1158>

Psy"cho*pan"ny*chism (?) , n. [ Psycho- + Gr. <?/ to spend all night long; <?/, <?/, all + <?/ night.] (Theol.) The doctrine that the soul falls asleep at death, and does not wake until the resurrection of the body. -- Psy`cho*pan"ny*chism (#) , n.

Psychopathy <Xpage=1158>

Psy*chop"a*thy (?) , n. [ Psycho- + Gr. <?/, <?/.] (Med.) Mental disease. See Psychosis , 2. -- Psy`cho*path"ic , a. -- Psy*chop"a*thist , n.

Psychophysical <Xpage=1158>

Psy`cho*phys"ic*al (?) , a. Of or pertaining to psychophysics; involving the action or mutual relations of the psychical and physical in man.

Psychophysical time (Physiol.) , the time required for the mind to transform a sensory impression into a motor impulse. It is an important part of physiological or reaction time . See under Reaction .

Psychophysics <Xpage=1158>

Psy`cho*phys"ics (?) , n. [ Psycho- + physics .] The science of the connection between nerve action and consciousness; the science which treats of the relations of the psychical and physical in their conjoint operation in man; the doctrine of the relation of function or dependence between body and soul.

Psychopomp <Xpage=1158>

Psy"cho*pomp (?) , n. [Gr. <?/; <?/ the soul + <?/ to send: cf. F. psychopompe .] (Myth.) A leader or guide of souls .

J. Fiske.

Psychosis <Xpage=1158>

Psy*cho"sis (?) , n. [NL. See Psycho- .]

1. Any vital action or activity.

Mivart.

2. (Med.) A disease of the mind; especially, a functional mental disorder, that is, one unattended with evident organic changes.

Psychozoic <Xpage=1158>

Psy`cho*zo"ic (?) , a. [ Psycho- + Gr. <?/ life.] (Geol.) Designating, or applied to the Era of man; as, the psychozoic era .

Psychrometer <Xpage=1158>

Psy*chrom"e*ter (?) , n. [Gr. psychro`s cold + -meter : cf. F. psychrom\'8atre .] An instrument for measuring the tension of the aqueous vapor in the atmosphere, being essentially a wet and dry bulb hygrometer.

Psychrometrical <Xpage=1158>

Psy`chro*met"ric*al (?) , a. Of or pertaining to the psychrometer or psychrometry.

Psychrometry <Xpage=1158>

Psy*chrom"e*try (?) , n. Hygrometry.

Psylla <Xpage=1158>

Psyl"la (?) , n. ; pl. Psyll\'91 (#) . [NL., from Gr. <?/ a flea.] (Zo\'94l.) Any leaping plant louse of the genus Psylla , or family Psyllid\'91 .

Ptarmigan <Xpage=1158>

Ptar"mi*gan (?) , n. [Gael. tarmachan ; cf. Ir. tarmochan , tarmonach .] (Zo\'94l.) Any grouse of the genus Lagopus , of which numerous species are known. The feet are completely feathered. Most of the species are brown in summer, but turn white, or nearly white, in winter.

&hand; They chiefly inhabit the northern countries and high mountains of Europe, Asia, and America. The common European species is Lagopus mutus . The Scotch grouse, red grouse, or moor fowl ( L. Scoticus ), is reddish brown, and does not turn white in winter. The white, or willow, ptarmigan ( L. albus ) is found in both Europe and America.

Ptenoglossa <Xpage=1158>

Pte`no*glos"sa (?) , n. pl. [NL., fr. Gr.<?/ feathered + <?/ tongue.] (Zo\'94l.) A division of gastropod mollusks having the teeth of the radula arranged in long transverse rows, somewhat like the barbs of a feather.

Ptenoglossate <Xpage=1158>

Pte`no*glos"sate (?) , a. (Zo\'94l.) Of or pertaining to the Ptenoglossa.

Pteranodon <Xpage=1158>

Pte*ran"o*don (?) , n. [Gr. <?/ wing + <?/ priv. + <?/, <?/, a tooth.] (Paleon.) A genus of American Cretaceous pterodactyls destitute of teeth. Several species are known, some of which had an expanse of wings of twenty feet or more.

Pteranodontia <Xpage=1158>

Pte*ran`o*don"ti*a (?) , n. pl. [NL.] (Paleon.) A group of pterodactyls destitute of teeth, as in the genus Pteranodon .

Pterichthys <Xpage=1158>

Pte*rich"thys (?) , n. [NL., fr. Gr. <?/ wing + <?/ fish.] (Paleon.) A genus of Devonian fossil fishes with winglike appendages. The head and most of the body were covered with large bony plates. See Placodermi .

Pteridologist <Xpage=1158>

Pter`i*dol"o*gist (?) , n. One who is versed in pteridology.

Pteridology <Xpage=1158>

Pter`i*dol"o*gy (?) , n. [Gr. <?/, <?/, a fern + -logy .] That department of botany which treats of ferns.

Pteridomania <Xpage=1158>

Pter`i*do*ma"ni*a (?) , n. [Gr. <?/, <?/, a fern + E. mania .] A madness, craze, or strong fancy, for ferns. [R.]

C. Kingsley.

Pteridophyta <Xpage=1158>

Pter`i*doph"y*ta (?) , n. pl. [NL., from Gr. <?/, <?/, a fern + <?/ a plant.] (Bot.) A class of flowerless plants, embracing ferns, horsetails, club mosses, quillworts, and other like plants. See the Note under Cryptogamia . -- Pter"i*do*phyte` (#) , n.

&hand; This is a modern term, devised to replace the older ones acrogens and vascular Cryptogamia .

Pterobranchia <Xpage=1158>

Pter`o*bran"chi*a (?) , n. pl. [NL., fr. Gr. <?/ a wing + <?/ <?/.] (Zo\'94l.) An order of marine Bryozoa, having a bilobed lophophore and an axial cord. The genus Rhabdopleura is the type. Called also Podostomata . See Rhabdopleura .

Pteroceras <Xpage=1158>

Pte*roc"e*ras (?) , n. [NL., fr. Gr. <?/ a wing + <?/ a horn.] (Zo\'94l.) A genus of large marine gastropods having the outer border of the lip divided into lobes; -- called also scorpion shell .

Pterocletes <Xpage=1158>

Pter`o*cle"tes (?) , n. pl. [NL., fr Pterocles , the typical genus, fr. Gr. <?/ feather + <?/, <?/, a key, tongue of a clasp.] (Zo\'94l.) A division of birds including the sand grouse. They are in some respects intermediate between the pigeons and true grouse. Called also Pteroclomorph\'91 .

Pterodactyl <Xpage=1158>

Pter`o*dac"tyl (?) , n. [Gr. <?/ a wing + <?/ finger, toe: cf. F. pt\'82rodactyle .] (Paleon.) An extinct flying reptile; one of the Pterosauria. See Illustration in Appendix.

Pterodactyli <Xpage=1158>

Pter`o*dac"ty*li (?) , n. pl. [NL.] (Paleon.) Same as Pterosauria .

Pteroglossal <Xpage=1158>

Pter`o*glos"sal (?) , a. [Gr. <?/ a feather + <?/ tongue.] (Zo\'94l.) Having the tongue finely notched along the sides, so as to have a featherlike appearance, as the toucans.

Pteron <Xpage=1158>

Pte"ron (?) , n. [NL., fr. Gr. <?/ a wing.] (Anat.) The region of the skull, in the temporal fossa back of the orbit, where the great wing of the sphenoid, the temporal, the parietal, and the frontal hones approach each other.

Pteropappi <Xpage=1158>

Pter`o*pap"pi (?) , n. pl. [NL., from Gr. <?/ a feather, a bird + <?/ a grandfather.] (Zool.) Same as Odontotorm\'91 .

Pterophore <Xpage=1158>

Pter"o*phore (?) , n. [Gr. <?/ a feather + <?/ to bear.] (Zo\'94l.) Any moth of the genus Pterophorus and allied genera; a plume moth. See Plume moth , under Plume .

Pteropod <Xpage=1158>

Pter"o*pod (?) , n. [Gr. <?/ wing-footed; <?/ a feather, wing + <?/, <?/, foot: cf. F. pt\'82ropode .] (Zo\'94l.) One of the Pteropoda.

Pteropoda <Xpage=1158>

Pte*rop"o*da (?) , n. pl. [NL.] (Zo\'94l.) A class of Mollusca in which the anterior lobes of the foot are developed in the form of broad, thin, winglike organs, with which they swim at near the surface of the sea.

&hand; The Pteropoda are divided into two orders: Cymnosomata , which have the body entirely naked and the head distinct from the wings; and Thecosomata , which have a delicate transparent shell of various forms, and the head not distinct from the wings.

Pteropodous <Xpage=1158>

Pte*rop"o*dous (?) , a. (Zo\'94l.) Of or pertaining to the Pteropoda.

Pterosaur <Xpage=1158>

Pter"o*saur (?) , n. [Gr. <?/ wind + <?/ a lizard.] (Paleon.) A pterodactyl.

Pterosauria <Xpage=1158>

Pter`o*sau"ri*a (?) , n. pl. [NL.] (Paleon.) An extinct order of flying reptiles of the Mesozoic age; the pterodactyls; -- called also Pterodactyli , and Ornithosauria .

&hand; The wings were formed, like those of bats, by a leathery expansion of the skin, principally supported by the greatly enlarged outer or " little" fingers of the hands. The American Cretaceous pterodactyls had no teeth. See Pteranodontia , and Pterodactyl .

Pterosaurian <Xpage=1158>