Chapter 1132

Pe`ri*od"ic*al*ist , n. One who publishes, or writes for, a periodical.

Periodically <Xpage=1067>

Pe`ri*od"ic*al*ly , adv. In a periodical manner.

Periodicalness <Xpage=1067>

Pe`ri*od"ic*al*ness , n. Periodicity.

Periodicity <Xpage=1067>

Pe`ri*o*dic"i*ty (?) , n. ; pl. Periodicities (#) . [Cf. F. p\'82riodicit\'82 .] The quality or state of being periodical, or regularly recurrent; as, the periodicity in the vital phenomena of plants .

Henfrey.

Periodide <Xpage=1067>

Per*i"o*dide (?) , n. [Pref. per- + iodide .] An iodide containing a higher proportion of iodine than any other iodide of the same substance or series.

Periodontal <Xpage=1067>

Per`i*o*don"tal (?) , a. [Pref. peri- + Gr. <?/, <?/, tooth.] (Anat.) Surrounding the teeth.

Periodoscope <Xpage=1067>

Pe`ri*od"o*scope (?) , n. [ Period + -scope .] (Med.) A table or other means for calculating the periodical functions of women.

Dunglison.

Peri\'d2ci, Peri\'d2cians <Xpage=1067>

Per`i*\'d2"ci , Per`i*\'d2"cians , n. pl. [NL. perioeci , fr. Gr. <?/; <?/ around + <?/ house, dwelling.] Those who live on the same parallel of latitude but on opposite meridians, so that it is noon in one place when it is midnight in the other. Compare Ant\'d2ci .

Periople <Xpage=1067>

Per"i*o*ple (?) , n. [F. p\'82riople , from Gr. <?/ about + <?/ the hoof of a horse.] (Anat.) The external smooth horny layer of the hoof of the horse and allied animals.

Perioplic <Xpage=1067>

Per`i*op"lic (?) , a. (Anat.) Of or pertaining to the periople; connected with the periople.

Periosteal <Xpage=1067>

Per`i*os"te*al (?) , a. (Anat.) Situated around bone; of or pertaining to the periosteum.

Periosteum <Xpage=1067>

Per`i*os"te*um (?) , n. [NL., fr. Gr. <?/ round the bones; <?/ around + <?/ a bone: cf. L. periosteon .] (Anat.) The membrane of fibrous connective tissue which closely invests all bones except at the articular surfaces.

Periostitis <Xpage=1067>

Per`i*os*ti"tis (?) , n. [NL. See Periosteum , and -itis .] (Med.) Inflammation of the periosteum.

Periostracum <Xpage=1067>

Per`i*os"tra*cum (?) , n. ; pl. Periostraca (#) . [NL., fr. Gr. <?/ around + <?/ shell of a testacean.] (Zo\'94l.) A chitinous membrane covering the exterior of many shells; -- called also epidermis .

Periotic <Xpage=1067>

Per`i*o"tic (?) , a. [Pref. peri- + Gr. <?/, <?/, the ear.] (Anat.) Surrounding, or pertaining to the region surrounding, the internal ear; as, the periotic capsule . -- n. A periotic bone.

Peripatecian <Xpage=1067>

Per`i*pa*te"cian (?) , n. A peripatetic. [Obs.]

Peripatetic <Xpage=1067>

Per`i*pa*tet"ic (?) , a. [L. peripateticus , Gr. <?/, fr. <?/ to walk about; <?/ about + <?/ to walk: cf. F. p\'82ripat\'82tique .] 1. Walking about; itinerant.

2. Of or pertaining to the philosophy taught by Aristotle (who gave his instructions while walking in the Lyceum at Athens), or to his followers. "The true peripatetic school."

Howell.

Peripatetic <Xpage=1067>

Per`i*pa*tet"ic , n. 1. One who walks about; a pedestrian; an itinerant.

Tatler.

2. A disciple of Aristotle; an Aristotelian.

Peripatetical <Xpage=1067>

Per`i*pa*tet"ic*al (?) , a. Peripatetic. [R.]

Hales.

Peripateticism <Xpage=1067>

Per`i*pa*tet"i*cism (?) , n. [Cf. F. p\'82ripat\'82tisme .] The doctrines or philosophical system of the peripatetics. See Peripatetic , n. , 2.

Lond. Sat. Rev.

Peripatus <Xpage=1067>

Pe*rip"a*tus (?) , n. [NL., fr. Gr. <?/ a walking about.] (Zo\'94l.) A genus of lowly organized arthropods, found in South Africa, Australia, and tropical America. It constitutes the order Malacopoda.

Peripetalous <Xpage=1067>

Per`i*pet"al*ous (?) , a. (Bot.) Surrounding, or situated about, the petals.

Peripheral <Xpage=1067>

Pe*riph"er*al (?) , a. 1. Of or pertaining to a periphery; constituting a periphery; peripheric.

2. (Anat.) External; away from the center; as, the peripheral portion of the nervous system .

Peripheric, Peripherical <Xpage=1067>

Per`i*pher"ic (?) , Per`i*pher"ic*al (?) , a. [Cf. F. p\'82riph\'82rique . See Periphery .] See Peripheral .

Periphery <Xpage=1067>

Pe*riph"er*y (?) , n. ; pl. Peripheries (#) . [L. peripheria , Gr. <?/; <?/ around + <?/ to bear, carry: cf. F. p\'82riph\'82rie .] 1. The outside or superficial portions of a body; the surface.

2. (Geom.) The circumference of a circle, ellipse, or other figure.

Periphrase <Xpage=1067>

Per"i*phrase (?) , n. [L. periphrasis , Gr. <?/, fr. <?/ to think about, to be expressed periphrastically; <?/ + <?/ to speak: cf. F. p\'82riphrase . See Phrase .] (Rhet.) The use of more words than are necessary to express the idea; a roundabout, or indirect, way of speaking; circumlocution. "To describe by enigmatic periphrases ."

De Quincey.

Periphrase <Xpage=1067>

Per"i*phrase , v. t. [ imp. & p. p. Periphrased (?) ; p. pr. & vb. n. Periphrasing .] [Cf. F. p\'82riphraser .] To express by periphrase or circumlocution.

Periphrase <Xpage=1067>

Per"i*phrase , v. i. To use circumlocution.

Periphrasis <Xpage=1067>

Pe*riph"ra*sis (?) , n. ; pl. Periphrases (#) . [L.] See Periphrase .

Periphrastic, Periphrastical <Xpage=1067>

Per`i*phras"tic (?) , Per`i*phras"tic*al (?) , a. [Gr. <?/: cf. F. p\'82riphrastique .] Expressing, or expressed, in more words than are necessary; characterized by periphrase; circumlocutory.

Periphrastic conjugation (Gram.) , a conjugation formed by the use of the simple verb with one or more auxiliaries.

Periphrastically <Xpage=1067>

Per`i*phras"tic*al*ly , adv. With circumlocution.

Periplast <Xpage=1067>

Per"i*plast (?) , n. [Pref. peri- + Gr. <?/ to mold, form.] (Biol.) Same as Periblast . -- Per`i*plas"tic (#) , a.

Huxley.

Peripneumonia, Peripneumony <Xpage=1067>

Per`ip*neu*mo"ni*a (?) , Per`ip*neu"mo*ny (?) , n. [L. peripneumonia , Gr. <?/: cf. F. p\'82ripneumonie . See Peri- , Pneumonia .] (Med.) Pneumonia. (Obsoles.) <-- sic. why is this mark in parentheses rather than brackets? -->

Peripneumonic <Xpage=1067>

Per`ip*neu*mon"ic (?) , a. [L. peripneumonicus , Gr. <?/: cf. F. p\'82ripneumonique .] (Med.) Of or pertaining to peripneumonia.

Periproct <Xpage=1067>

Per"i*proct (?) , n. [Pref. peri- + Gr. <?/ the anus.] (Zo\'94l.) The region surrounding the anus, particularly of echinoderms.

Periproctitis <Xpage=1067>

Per`i*proc*ti"tis (?) , n. [NL. See Peri- , and Proctitus .] (Med.) Inflammation of the tissues about the rectum.

Peripteral <Xpage=1067>

Pe*rip"ter*al (?) , a. [Gr., fr. <?/ + <?/ feather, wing, row of columns.] (Arch.) Having columns on all sides; -- said of an edifice. See Apteral .

Peripterous <Xpage=1067>

Pe*rip"ter*ous (?) , a. 1. (Arch.) Peripteral.

2. (Zo\'94l.) Feathered all around.

Perisarc <Xpage=1067>

Per"i*sarc (?) , n. [Pref. peri- + Gr. <?/, <?/, flesh.] (Zo\'94l.) The outer, hardened integument which covers most hydroids.

Periscian <Xpage=1067>

Pe*ris"cian (?) , a. [Gr. <?/; <?/ around + <?/ shadow: cf. F. p\'82riscien .] Having the shadow moving all around.

Periscians, Periscii <Xpage=1067>

Pe*ris"cians (?) , Pe*ris"ci*i (?) , n. pl. [NL. See Periscian .] Those who live within a polar circle, whose shadows, during some summer days, will move entirely round, falling toward every point of the compass.

Periscope <Xpage=1067>

Per"i*scope (?) , n. [Pref. peri- + -scope .] A general or comprehensive view. [R.]

Periscopic <Xpage=1067>

Per`i*scop"ic (?) , a. [Cf. F. p\'82riscopique .] Viewing all around, or on all sides.

Periscopic spectacles (Opt.) , spectacles having concavo-convex or convexo-concave lenses with a considerable curvature corresponding to that of the eye, to increase the distinctness of objects viewed obliquely.

Perish <Xpage=1067>

Per"ish (?) , v. i. [ imp. & p. p. Perished (?) ; p. pr. & vb. n. Perishing .] [OE. perissen , perisshen , F. p\'82rir , p.pr. p\'82rissant , L. perire to go or run through, come to nothing, perish; per through + ire to go. Cf. Issue , and see -ish .] To be destroyed; to pass away; to become nothing; to be lost; to die; hence, to wither; to waste away.

I perish with hunger! Luke xv. 17.

Grow up and perish , as the summer fly. Milton.

The thoughts of a soul that perish in thinking. Locke.

Perish <Xpage=1067>

Per"ish , v. t. To cause perish. [Obs.]

Bacon.

Perishability <Xpage=1067>

Per`ish*a*bil"i*ty (?) , n. Perishableness.

Perishable <Xpage=1067>

Per"ish*a*ble (?) , a. [F. p\'82rissable .] Liable to perish; subject to decay, destruction, or death; as, perishable goods; our perishable bodies.

Perishableness <Xpage=1067>

Per"ish*a*ble*ness , n. The quality or state of being perishable; liability to decay or destruction.

Locke.

Perishably <Xpage=1067>

Per"ish*a*bly , adv. In a perishable degree or manner.

Perishment <Xpage=1067>

Per"ish*ment (?) , n. [Cf. OF. perissement .] The act of perishing. [R.]

Udall.

Perisoma <Xpage=1067>

Per`i*so"ma (?) , n. ; pl. Perisomata (#) . [NL.] (Zo\'94l.) Same as Perisome .

Perisome <Xpage=1067>

Per"i*some (?) , n. [Pref. peri- + -some body.] (Zo\'94l.) The entire covering of an invertebrate animal, as echinoderm or c\'d2lenterate; the integument.

Perisperm <Xpage=1067>

Per"i*sperm (?) , n. [F. p\'82risperme . See Peri- , and Sperm .] (Bot.) The albumen of a seed, especially that portion which is formed outside of the embryo sac. -- Per`i*sper"mic (#) , a.

Perispheric, Perispherical <Xpage=1067>

Per`i*spher"ic (?) , Per`i*spher"ic*al (?) , a. Exactly spherical; globular.

Perispomenon <Xpage=1067>

Per`i*spom"e*non (?) , n. ; pl. Perispomena (#) . [NL., from Gr. <?/, pr. pass. p. of <?/ to draw around, to circumflex; <?/ around + <?/ to draw.] (Gr. Gram.) A word which has the circumflex accent on the last syllable.

Goodwin.

Perispore <Xpage=1067>

Per"i*spore (?) , n. (Bot.) The outer covering of a spore.

Perissad <Xpage=1067>

Per"is*sad (?) , a. [Gr. <?/ odd, from <?/ over.] (Chem.) Odd; not even; -- said of elementary substances and of radicals whose valence is not divisible by two without a remainder. Contrasted with artiad . <-- ? not in modern usage -->

Perisse <Xpage=1067>

Per"isse (?) , v. i. To perish. [Obs.]

Chaucer.

Perissodactyl <Xpage=1067>

Per`is*so*dac"tyl (?) , n. (Zo\'94l.) One of the Perissodactyla.

Perissodactyla <Xpage=1067>

Per`is*so*dac"ty*la (?) , n. pl. [NL., from Gr. <?/ odd (fr. <?/ over) + <?/ finger.] (Zo\'94l.) A division of ungulate mammals, including those that have an odd number of toes, as the horse, tapir, and rhinoceros; -- opposed to Artiodactyla .

Perissological <Xpage=1067>

Per`is*so*log"ic*al (?) , a. [Cf. F. p\'82rissologique .] Redundant or excessive in words. [R.]

Perissology <Xpage=1067>

Per`is*sol"o*gy (?) , n. [L. perissologia , Gr. <?/; <?/ odd, superfluous + <?/ discourse.] Superfluity of words. [R.]

G. Campbell.

Peristalsis <Xpage=1067>

Per`i*stal"sis (?) , n. [NL. See Peristaltic .] (Physiol.) Peristaltic contraction or action.

Peristaltic <Xpage=1067>

Per`i*stal"tic (?) , a. [Gr. <?/ clasping and compressing, fr. <?/ to surround, wrap up; <?/ round + <?/ to place, arrange: cf. F. p\'82ristaltique .] (Physiol.) Applied to the peculiar wormlike wave motion of the intestines and other similar structures, produced by the successive contraction of the muscular fibers of their walls, forcing their contents onwards; as, peristaltic movement . -- Per`i*stal"tic*al*ly (#) , adv.

Peristeria <Xpage=1067>

Per`is*te"ri*a (?) , n. [NL. See Peristerion .] (Bot.) A genus of orchidaceous plants. See Dove plant .

Peristerion <Xpage=1067>

Per`is*te"ri*on (?) , n. [NL., fr. Gr. <?/ a dovecote, a kind of verbena, fr. <?/ a dove, pigeon; cf. L. peristereon .] (Bot.) The herb vervain ( Verbena officinalis ).

Peristerite <Xpage=1067>

Pe*ris"ter*ite (?) , n. [Gr. <?/ a pigeon.] (Min.) A variety of albite, whitish and slightly iridescent like a pigeon's neck.

Peristeromorphous <Xpage=1067>

Pe*ris`ter*o*mor"phous (?) , a. [Gr. <?/ a pigeon + -morphous .] (Zo\'94l.) Like or pertaining to the pigeons or Columb\'91.

Peristeropodous <Xpage=1067>

Pe*ris`ter*op"o*dous (?) , a. [Gr. <?/ a pigeon + <?/, <?/, foot.] (Zo\'94l.) Having pigeonlike feet; -- said of those gallinaceous birds that rest on all four toes, as the curassows and megapods.

Peristole <Xpage=1067>

Pe*ris"to*le (?) , n. [NL.: cf. F. p\'82ristole . See Peristaltic .] (Physiol.) Peristaltic action, especially of the intestines.

Peristoma <Xpage=1067>

Pe*ris"to*ma (?) , n. ; pl. Peristomata (#) . [NL.] Same as Peristome .

<page="1068"> Page 1068

Peristome <Xpage=1068>

Per"i*stome (?) , n. [Pref. peri- + Gr. <?/, <?/, mouth.] 1. (Bot.) The fringe of teeth around the orifice of the capsule of mosses. It consists of 4, 8, 16, 32, or 64 teeth, and may be either single or double.

2. (Zo\'94l.) (a) The lip, or edge of the aperture, of a spiral shell. (b) The membrane surrounding the mouth of an invertebrate animal.

Peristomial <Xpage=1068>

Per`i*sto"mi*al (?) , a. (Zo\'94l.) Of or pertaining to a peristome.

Peristomium <Xpage=1068>

Per`i*sto"mi*um (?) , n. [NL.] Same as Peristome .

Peristrephic <Xpage=1068>

Per`i*streph"ic (?) , a. [Gr. <?/ to turn round.] Turning around; rotatory; revolving; as, a peristrephic painting (of a panorama) .

Peristyle <Xpage=1068>

Per"i*style (?) , n. [L. peristylum , Gr. <?/, <?/; <?/ about + <?/ a column: cf. F. p\'82ristyle .] (Arch.) A range of columns with their entablature, etc.; specifically, a complete system of columns, whether on all sides of a court, or surrounding a building, such as the cella of a temple. Used in the former sense, it gives name to the larger and inner court of a Roman dwelling, the peristyle . See Colonnade .

Perisystole <Xpage=1068>

Per`i*sys"to*le (?) , n. [Pref. peri- + systole : cf. F. p\'82risystole .] (Physiol.) The interval between the diastole and systole of the heart. It is perceptible only in the dying.

Perite <Xpage=1068>

Pe*rite" (?) , a. [L. peritus .] Skilled. [Obs.]

Perithecium <Xpage=1068>

Per`i*the"ci*um (?) , n. [NL., fr. Gr. <?/ around + <?/ box.] (Bot.) An organ in certain fungi and lichens, surrounding and enveloping the masses of fructification.

Henslow.

Peritomous <Xpage=1068>

Pe*rit"o*mous (?) , a. [Gr. <?/ cut off all around. See Peri- , and Tome .] (Min.) Cleaving in more directions than one, parallel to the axis.

Periton\'91um <Xpage=1068>

Per`i*to*n\'91"um (?) , n. (Anat.) Same as Peritoneum .

Peritoneal <Xpage=1068>

Per`i*to*ne"al (?) , a. [Cf. F. p\'82riton\'82al .] (Anat.) Of or pertaining to the peritoneum.

Peritoneum <Xpage=1068>

Per`i*to*ne"um (?) , n. [L. peritoneum , peritonaeum , Gr. <?/, <?/, fr. <?/ to stretch all around or over; <?/ around + <?/ to stretch.] (Anat.) The smooth serous membrane which lines the cavity of the abdomen, or the whole body cavity when there is no diaphragm, and, turning back, surrounds the viscera, forming a closed, or nearly closed, sac. [Written also periton\'91um .]

Peritonitis <Xpage=1068>

Per`i*to*ni"tis (?) , n. [NL. See Peritoneum , and -itis .] (Med.) Inflammation of the peritoneum.

Peritracheal <Xpage=1068>

Per`i*tra"che*al (?) , a. (Zo\'94l.) Surrounding the trache\'91.

Peritreme <Xpage=1068>

Per"i*treme (?) , n. [Pref. peri- + Gr. <?/ a hole.] (Zo\'94l.) (a) That part of the integument of an insect which surrounds the spiracles. (b) The edge of the aperture of a univalve shell.

Peritricha <Xpage=1068>

Pe*rit"ri*cha (?) , n. pl. [NL., fr. Gr. <?/ about + <?/, <?/, hair.] (Zo\'94l.) A division of ciliated Infusoria having a circle of cilia around the oral disk and sometimes another around the body. It includes the vorticellas. See Vorticella .

Peritrochium <Xpage=1068>

Per`i*tro"chi*um (?) , n. [NL., fr. Gr. <?/; <?/ around + <?/ a wheel.] (Mech.) The wheel which, together with the axle, forms the axis in peritrochio , which see under Axis .

Peritropal <Xpage=1068>

Per*it"ro*pal (?) , a. [Gr. <?/, fr. <?/ to turn around; <?/ around + <?/ to turn: cf. F. p\'82ritrope .] 1. Rotatory; circuitous. [R.]

2. Having the axis of the seed perpendicular to the axis of the pericarp to which it is attached.

Peritropous <Xpage=1068>

Per*it"ro*pous (?) , a. Peritropal.

Perityphlitis <Xpage=1068>