Or*nith"o*man`cy (?), n. [Gr. &?;; &?;, &?;, a bird + &?; divination:
cf. F. ornithomancie.] Divination by means of birds, their flight, etc.
Ornithomancy grew into an elaborate science.
De Quincey.
||Or*ni"thon (?), n. [L., fr. Gr. &?;, fr. &?;, &?;, a bird.] An
||aviary; a poultry house. Weale.
||Or*ni`tho*pap"pi (?), n. pl. [NL., from Gr. &?; a bird + &?; an
||ancestor.] (Zoöl.) An extinct order of birds. It includes only the
||Archæopteryx.
||Or`ni*thop"o*da (?), n. pl. [NL. See Ornitho-, and -poda.] (Paleon.)
||An order of herbivorous dinosaurs with birdlike characteristics in
||the skeleton, esp. in the pelvis and hind legs, which in some genera
||had only three functional toes, and supported the body in walking as
||in Iguanodon. See Illust. in Appendix.
||Or`ni*tho*rhyn"chus (?), n. [NL., fr. Gr. &?;, &?;, a bird + &?;
||snout, beak.] (Zoöl.) See Duck mole, under Duck.
||Or*ni`tho*sau"ri*a (?), n. pl. [NL. See Ornitho-, and Sauria.]
||(Paleon.) An order of extinct flying reptiles; -- called also
||Pterosauria.
||Or*ni`tho*scel"i*da (?), n. pl. [NL., fr. Gr. &?;, &?;, a bird + &?;
||a leg.] (Zoöl.) A group of extinct Reptilia, intermediate in
||structure (especially with regard to the pelvis) between reptiles and
||birds. -- Or`ni*tho*scel"i*dan (#), a.
Or`ni*thos"co*py (?), n. [Ornitho- + -scopy: cf. Gr. &?; divination
from birds.] Observation of birds and their habits. [R.] De Quincey.
Or`ni*tho*tom"ic*al (?), a. Of or pertaining to ornithotomy.
Or`ni*thot"o*mist (?), n. One who is skilled in ornithotomy.
Or`ni*thot"o*my (?), n. [Gr. &?;, &?;, a bird + &?; to cut.] The
anatomy or dissection of birds.
{ Or`o*graph"ic (?), Or`o*graph"ic*al (?), } a. Of or pertaining to
orography.
O*rog"ra*phy (?), n. [Gr. 'o`ros, a mountain + -graphy.] That branch of
science which treats of mountains and mountain systems; orology; as,
the orography of Western Europe.
||Or`o*hip"pus (?), n. [NL., fr. Gr. 'o`ros, mountain (referring to the
||Rocky Mountain region) + "i`ppos horse.] (Paleon.) A genus of
||American Eocene mammals allied to the horse, but having four toes in
||front and three behind.
O"roide (?), n. [F. or gold (L. aurum) + Gr. &?; form.] An alloy,
chiefly of copper and zinc or tin, resembling gold in color and
brilliancy. [Written also oreide.]
Or`o*log"ic*al (?), a. [Cf. F. orologique.] Of or pertaining to
orology.
O*rol"o*gist (?), n. One versed in orology.
O*rol"o*gy (?), n. [Gr. &?; mountain + -logy: cf. F. orologie.] The
science or description of mountains.
O"ro*tund` (?), a. [L. os, oris, the mouth + rotundus round, smooth.]
Characterized by fullness, clearness, strength, and smoothness; ringing
and musical; -- said of the voice or manner of utterance. -- n. The
orotund voice or utterance Rush.
O`ro*tun"di*ty (?), n. The orotund mode of intonation.