Chapter 1076

Or*thop"ter*ous (?) , a. (Zo\'94l.) Of or pertaining to the Orthoptera.

Orthorhombic <Xpage=1014>

Or`tho*rhom"bic (?) , a. [ Ortho- + rhombic .] (Crystallog.) Noting the system of crystallization which has three unequal axes at right angles to each other; trimetric. See Crystallization .

Orthoscope <Xpage=1014>

Or"tho*scope (?) , n. [ Ortho- + -scope .] (Physyol.) An instrument designed to show the condition of the superficial portions of the eye.

Orthoscopic <Xpage=1014>

Or`tho*scop"ic (?) , a. (Opt.) Giving an image in correct or normal proportions; giving a flat field of view; as, an orthoscopic eyepiece .

Orthosilicic <Xpage=1014>

Or`tho*si*lic"ic (?) , a. [ Ortho- + silicic .] (Chem.) Designating the form of silicic acid having the normal or highest number of hydroxyl groups.

Orthospermous <Xpage=1014>

Or`tho*sper"mous (?) , a. [ Ortho- + Gr. <?/ seed.] (Bot.) Having the seeds straight, as in the fruits of some umbelliferous plants; -- opposed to c\'d2lospermous .

Darwin.

Orthostade <Xpage=1014>

Or"tho*stade (?) , n. [Gr. <?/; <?/ straight + <?/ to place.] (Anc. Costume) A chiton, or loose, ungirded tunic, falling in straight folds.

Orthostichy <Xpage=1014>

Or*thos"ti*chy (?) , n. ; pl. Orthostichies (#) . [ Ortho- + Gr. <?/ row.] (Bot.) A longitudinal rank, or row, of leaves along a stem.

Orthotomic <Xpage=1014>

Or`tho*tom"ic (?) , a. [ Ortho- + Gr. <?/ to cleave.] (Geom.) Cutting at right angles.

Orthotomic circle (Geom.) , that circle which cuts three given circles at right angles.

Orthotomous <Xpage=1014>

Or*thot"o*mous (?) , a. (Crystallog.) Having two cleavages at right angles with one another.

Orthotomy <Xpage=1014>

Or*thot"o*my (?) , n. (Geom.) The property of cutting at right angles.

Orthotone <Xpage=1014>

Or"tho*tone (?) , a. [ Ortho- + Gr. <?/ tone, accent.] (Gr. Gram.) Retaining the accent; not enclitic; -- said of certain indefinite pronouns and adverbs when used interrogatively, which, when not so used, are ordinarilly enclitic.

Orthotropal, Orthotropous <Xpage=1014>

Or*thot"ro*pal (?) , Or*thot"ro*pous (?) , a. [ Ortho- + Gr. <?/ to turn: cf. F. orthotrope .] (Bot.) Having the axis of an ovule or seed straight from the hilum and chalaza to the orifice or the micropyle; atropous.

&hand; This word has also been used (but improperly) to describe any embryo whose radicle points towards, or is next to, the hilum.

Orthotropic <Xpage=1014>

Or`tho*trop"ic (?) , a. [See Orthotropal .] (Bot.) Having the longer axis vertical; -- said of erect stems.

Encyc. Brit.

Orthoxylene <Xpage=1014>

Or`tho*xy"lene (?) , n. [ Ortho- + xylene .] (Chem.) That variety of xylene in which the two methyl groups are in the ortho position; a colorless, liquid, combustible hydrocarbon resembling benzene.

Ortive <Xpage=1014>

Or"tive (?) , a. [L. ortivus , fr. oriri , ortus , to rise: cf. F. ortive .] Of or relating to the time or act of rising; eastern; as, the ortive amplitude of a planet .

Ortolan <Xpage=1014>

Or"to*lan (?) , n. [F., fr. It. ortolano ortolan, gardener, fr. L. hortulanus gardener, fr. hortulus , dim. of hortus garden. So called because it frequents the hedges of gardens. See Yard an inclosure, and cf. Hortulan .] (Zo\'94l.) (a) A European singing bird ( Emberiza hortulana ), about the size of the lark, with black wings. It is esteemed delicious food when fattened. Called also bunting . (b) In England, the wheatear ( Saxicola \'d2nanthe ). (c) In America, the sora, or Carolina rail ( Porzana Carolina ). See Sora .

Ortygan <Xpage=1014>

Or"ty*gan (?) , n. [Gr. <?/, <?/, a quail.] (Zo\'94l.) One of several species of East Indian birds of the genera Ortygis and Hemipodius . They resemble quails, but lack the hind toe. See Turnix .

Orval <Xpage=1014>

Or"val (?) , n. [F. orvale .] (Bot.) A kind of sage ( Salvia Horminum ).

Orvet <Xpage=1014>

Or`vet" (?) , n. [F.] (Zo\'94l.) The blindworm.

Orvietan <Xpage=1014>

Or`vi*e"tan (?) , n. [F. orvi\'82tan : cf. It. orvietano . So called because invented at Orvieto , in Italy.] A kind of antidote for poisons; a counter poison formerly in vogue. [Obs.]

-ory <Xpage=1014>

-o*ry (?) . [L. -orius : cf. F. -oire .] 1. An adjective suffix meaning of or pertaining to , serving for ; as in audit ory , pertaining to or serving for hearing; prohibit ory , amendat ory , etc.

2. [L. -orium : cf. F. -oire .] A noun suffix denoting that which pertains to , or serves for ; as in ambulat ory , that which serves for walking; consist ory , fact ory , etc.

Oryal, Oryall <Xpage=1014>

O"ry*al (?) , O"ry*all (?) , n. See Oriel .

Oryctere <Xpage=1014>

Or"yc*tere (?) , n. [Gr. <?/ digger: cf. F. oryct\'8are .] (Zo\'94l.) The aard-vark.

Orycterope <Xpage=1014>

O*ryc"ter*ope (?) , n. [Gr. <?/ digger + <?/ foot.] (Zo\'94l.) Same as Oryctere .

Oryctognosy <Xpage=1014>

Or`yc*tog"no*sy (?) , n. [Gr. <?/ dug (<?/ to dig) + <?/ knowledge.] Mineralogy. [Obs.] -- Or`yc*tog*nos"tic (#) , a. -- Or`yc*tog*nos"tic*al (#) , a. [Obs.] -- Or`yc*tog*nos"tic*al*ly (#) , adv. [Obs.]

Oryctography <Xpage=1014>

Or`yc*tog"ra*phy (?) , n. [Gr. <?/ dug + -graphy .] Description of fossils. [Obs.]

Oryctological <Xpage=1014>

Or`yc*to*log"ic*al (?) , a. [Cf. F. oryctologique .] Of or pertaining to oryctology. [Obs.]

Oryctologist <Xpage=1014>

Or`yc*tol"o*gist (?) , n. One versed in oryctology. [Obs.]

Oryctology <Xpage=1014>

Or`yc*tol"o*gy (?) , n. [Gr. <?/ dug + -logy : cf. F. oryctologie .] 1. An old name for paleontology.

2. An old name for mineralogy and geology.

Oryx <Xpage=1014>

O"ryx (?) , n. [NL., from Gr. <?/ a kind of gazelle or antelope.] (Zo\'94l.) A genus of African antelopes which includes the gemsbok, the leucoryx, the bisa antelope ( O. beisa ), and the beatrix antelope ( O. beatrix ) of Arabia.

Oryza <Xpage=1014>

O*ry"za (?) , n. [L., rice, Gr. <?/ See Rice .] (Bot.) A genus of grasses including the rice plant; rice.

Os <Xpage=1014>

Os (?) , n. ; pl. Ossa (#) . [L.] A bone.

Os <Xpage=1014>

Os , n. ; pl. Ora (#) . [L.] A mouth; an opening; an entrance.

Os <Xpage=1014>

Os (?) , n. ; pl. Osar (#) . [Sw. \'86s ridge, chain of hills, pl. \'86sar .] (Geol.) One of the ridges of sand or gravel found in Sweden, etc., supposed by some to be of marine origin, but probably formed by subglacial waters. The osar are similar to the kames of Scotland and the eschars of Ireland. See Eschar .

Osage orange <Xpage=1014>

O"sage or"ange (?) . (Bot.) An ornamental tree of the genus Maclura ( M. aurantiaca ), closely allied to the mulberry ( Morus ); also, its fruit. The tree was first found in the country of the Osage Indians, and bears a hard and inedible fruit of an orangelike appearance. See Bois d'arc .

Osages <Xpage=1014>

O*sa"ges (?) , n. pl. ; sing. Osage (<?/) . (Ethnol.) A tribe of southern Sioux Indians, now living in the Indian Territory.

Osanne <Xpage=1014>

O*san"ne (?) , n. Hosanna. [Obs.]

Chaucer.

Osar <Xpage=1014>

O"sar (?) , n. pl. (Geol.) See 3d Os .

Oscan <Xpage=1014>

Os"can (?) , a. Of or pertaining to the Osci, a primitive people of Campania, a province of ancient Italy. -- n. The language of the Osci.

Oscillancy <Xpage=1014>

Os"cil*lan*cy (?) , n. The state of oscillating; a seesaw kind of motion. [R.]

Oscillaria <Xpage=1014>

Os`cil*la"ri*a (?) , n. [NL., fr. L. oscillare to swing.] (Bot.) A genus of dark green, or purplish black, filamentous, fresh-water alg\'91, the threads of which have an automatic swaying or crawling motion. Called also Oscillatoria .

Oscillate <Xpage=1014>

Os"cil*late (?) , v. i. [ imp. & p. p. Oscillated (?) ; p. pr. & vb. n. Oscillating (?) .] [L. oscillare to swing, fr. oscillum a swing, a little mask or puppet made to be hung from trees and swing in the wind, prob. orig., a little mouth, a dim. from os mouth. See Oral , and cf. Osculate .]

1. To move backward and forward; to vibrate like a pendulum; to swing; to sway.

2. To vary or fluctuate between fixed limits; to act or move in a fickle or fluctuating manner; to change repeatedly, back and forth.

The amount of superior families oscillates rather than changes, that is, it fluctuates within fixed limits. Dc Quincey.

<page="1015"> Page 1015

Oscillating <Xpage=1015>

Os"cil*la`ting (?) , a. That oscillates; vibrating; swinging.

Oscillating engine , a steam engine whose cylinder oscillates on trunnions instead of being permanently fixed in a perpendicular or other direction.

Weale.

Oscillation <Xpage=1015>

Os`cil*la"tion (?) , n. [L. oscillatio a swinging.]

1. The act of oscillating; a swinging or moving backward and forward, like a pendulum; vibration.

2. Fluctuation; variation; change back and forth.

His mind oscillated, undoubtedly; but the extreme points of the oscillation were not very remote. Macaulay.

Axis of oscillation , Center of oscillation . See under Axis , and Center .

Oscillative <Xpage=1015>

Os"cil*la*tive (?) , a. Tending to oscillate; vibratory. [R.]

I. Taylor.

Oscillatoria <Xpage=1015>

Os`cil*la*to"ri*a (?) , n. pl. [NL. See Oscillatory .] (Bot.) Same as Oscillaria .

Oscillatory <Xpage=1015>

Os"cil*la*to*ry (?) , a. [Cf. F. oscillatoire . See Oscillate .] Moving, or characterized by motion, backward and forward like a pendulum; swinging; oscillating; vibratory; as, oscillatory motion .

Oscine <Xpage=1015>

Os"cine (?) , a. (Zo\'94l.) Relating to the Oscines.

Oscines <Xpage=1015>

Os"ci*nes (?) , n. pl. [L. oscen , -inis .] (Zo\'94l.) Singing birds; a group of the Passeres, having numerous syringeal muscles, conferring musical ability.

Oscinian <Xpage=1015>

Os*cin"i*an (?) , n. (Zo\'94l.) One of the Oscines, or singing birds.

Oscinian <Xpage=1015>

Os*cin"i*an , n. (Zo\'94l.) Any one of numerous species of dipterous files of the family Oscinid\'91 .

&hand; Some, whose larv\'91 live in the stalks, are very destructive to barley, wheat, and rye; others, as the barley fly ( Oscinis frit ), destroy the heads of grain.

Oscinine <Xpage=1015>

Os"ci*nine (?) , a. (Zo\'94l.) Of or pertaining to the Oscines.

Oscitancy <Xpage=1015>

Os"ci*tan*cy (?) , n. [See Oscitant .]

1. The act of gaping or yawning.

2. Drowsiness; dullness; sluggishness.

Hallam.

It might proceed from the oscitancy of transcribers. Addison.

Oscitant <Xpage=1015>

Os"ci*tant (?) , a. [L. oscitans , -antis , p. pr. of oscitare : cf. F. oscitant .] 1. Yawning; gaping.

2. Sleepy; drowsy; dull; sluggish; careless.

He must not be oscitant , but intent on his charge. Barrow.

Oscitantly <Xpage=1015>

Os"ci*tant*ly , adv. In an oscitant manner.

Oscitate <Xpage=1015>

Os"ci*tate (?) , v. i. [L. oscitare ; os the mouth + citare , v. intens. fr. ciere to move.] To gape; to yawn.

Oscitation <Xpage=1015>

Os`ci*ta"tion (?) , n. [L. oscitatio : cf. F. oscitation .] The act of yawning or gaping.

Addison.

Osculant <Xpage=1015>

Os"cu*lant (?) , a. [L. osculans , -antis , p. pr. of osculari to kiss. See Osculate .]

1. Kissing; hence, meeting; clinging.

2. (Zo\'94l.) Adhering closely; embracing; -- applied to certain creeping animals, as caterpillars.

3. (Biol.) Intermediate in character, or on the border, between two genera, groups, families, etc., of animals or plants, and partaking somewhat of the characters of each, thus forming a connecting link; interosculant; as, the genera by which two families approximate are called osculant genera .

Osculate <Xpage=1015>

Os"cu*late (?) , v. t. [ imp. & p. p. Osculated (?) ; p. pr. & vb. n. Osculating .] [L. osculatus , p. p. of osculari to kiss, fr. osculum a little mouth, a kiss, dim. of os mouth. See Oral , and cf. Oscillate .]

1. To kiss.

2. (Geom.) To touch closely, so as to have a common curvature at the point of contact. See Osculation , 2.

Osculate <Xpage=1015>

Os"cu*late , v. i. 1. To kiss one another; to kiss.

2. (Geom.) To touch closely. See Osculation , 2.

3. (Biol.) To have characters in common with two genera or families, so as to form a connecting link between them; to interosculate. See Osculant .

Osculation <Xpage=1015>

Os`cu*la"tion (?) , n. [L. osculatio a kissing: cf. F. osculation .] 1. The act of kissing; a kiss.

2. (Geom.) The contact of one curve with another, when the number of consecutive points of the latter through which the former passes suffices for the complete determination of the former curve.

Brande & C.

Osculatory <Xpage=1015>

Os"cu*la*to*ry (?) , a. 1. Of or pertaining to kissing; kissing. "The osculatory ceremony."

Thackeray.

2. (Geom.) Pertaining to, or having the properties of, an osculatrix; capable of osculation; as, a circle may be osculatory with a curve, at a given point .

Osculatory circle . (Geom.) See Osculating circle of a curve , under Circle . -- Osculatory plane (to a curve of double curvature), a plane which passes through three successive points of the curve. -- Osculatory sphere (to a line of double curvature), a sphere passing through four consecutive points of the curve.

Osculatory <Xpage=1015>

Os"cu*la*to*ry , n. [LL. osculatorium . See Osculate .] (R. C. Ch.) Same as Pax , 2.

Osculatrix <Xpage=1015>

Os`cu*la"trix (?) , n. ; pl. Osculatrixes (#) . [NL.] (Geom.) A curve whose contact with a given curve, at a given point, is of a higher order (or involves the equality of a greater number of successive differential coefficients of the ordinates of the curves taken at that point) than that of any other curve of the same kind.

Oscule <Xpage=1015>

Os"cule (?) , n. [Cf. F. oscule . See Osculum .] (Zo\'94l.) One of the excurrent apertures of sponges.

Osculum <Xpage=1015>

Os"cu*lum (?) , n. ; pl. Oscula (#) . [L., a little mouth.] (Zo\'94l.) Same as Oscule .

-ose <Xpage=1015>

-ose (?) . [L. -osus : cf. F. -ose . Cf. -ous .]

1. A suffix denoting full of , containing , having the qualities of , like ; as in verb ose , full of words; pil ose , hairy; glob ose , like a globe.

2. (Chem.) A suffix indicating that the substance to the name of wich it is affixed is a member of the carbohydrate group ; as in cellul ose , sucr ose , dextr ose , etc.

Osier <Xpage=1015>

O"sier (?) , n. [F. osier : cf. Prov . F. oisis , Armor. ozil , aozil , Gr. <?/, <?/, <?/, L. vitex , and E. withy .] (Bot.) (a) A kind of willow ( Salix viminalis ) growing in wet places in Europe and Asia, and introduced into North America. It is considered the best of the willows for basket work. The name is sometimes given to any kind of willow. (b) One of the long, pliable twigs of this plant, or of other somilar plants.

The rank of osiers by the murmuring stream. Shak.

Osier bed , &or; Osier holt , a place where willows are grown for basket making. [Eng.] -- Red osier . (a) A kind of willow with reddish twigs ( Salix rubra ). (b) An American shrub ( Cornus stolonifera ) which has slender red branches; -- also called osier cornel .

Osier <Xpage=1015>

O"sier , a. Made of osiers; composed of, or containing, osiers. "This osier cage of ours."

Shak.

Osiered <Xpage=1015>

O"siered (?) , a. Covered or adorned with osiers; as, osiered banks . [Poetic]

Collins.

Osiery <Xpage=1015>

O"sier*y (?) , n. An osier bed.

Osiris <Xpage=1015>

O*si"ris (?) , n. [L., fr. Gr. <?/; of Egyptian origin.] (Myth.) One of the principal divinities of Egypt, the brother and husband of Isis. He was figured as a mummy wearing the royal cap of Upper Egypt, and was symbolized by the sacred bull, called Apis . Cf. Serapis . -- O*sir"i*an (#) , a.

Osmanli <Xpage=1015>

Os"man*li (?) , n. ; pl. Osmanlis (#) . [So called from Osman . See Ottoman .] A Turkish official; one of the dominant tribe of Turks; loosely, any Turk.

Osmate <Xpage=1015>

Os"mate (?) , n. (Chem.) A salt of osmic acid. [Formerly written also osmiate .]

Osmaterium <Xpage=1015>

Os`ma*te"ri*um (?) , n. ; pl. Osmateria (#) . [NL., fr. Gr. <?/ smell.] (Zo\'94l.) One of a pair of scent organs which the larv\'91 of certain butterflies emit from the first body segment, either above or below.

Osmazome <Xpage=1015>