Webster's Dictionary, 1913

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Ophidioid adjective [ Ophidion + -oid .] (Zoology) Of or pertaining to the Ophidiidæ , a family of fishes which includes many slender species. -- noun One of the Ophidiidæ .

Ophidion noun ; plural Ophidia . [ Latin , from Greek ... little snake, from 'o`fis a serpent.] (Zoology) The typical genus of ophidioid fishes. [ Written also Ophidium .] See Illust. under Ophidioid .

Ophidious adjective Ophidian.

Ophiolatry noun [ Greek 'o`fis serpent + ... worship.] The worship of serpents.

Ophiologic, Ophiological adjective Of or pertaining to ophiology.

Ophiologist noun One versed in the natural history of serpents.

Ophiology noun [ Greek 'o`fis a serpent + -logy : confer French ophioloqie .] That part of natural history which treats of the ophidians, or serpents.

Ophiomancy noun [ Greek 'o`fis a serpent + -mancy : confer French ophiomantie .] Divination by serpents, as by their manner of eating, or by their coils.

Ophiomorpha noun plural [ New Latin See Ophiomorphous .] (Zoology) An order of tailless amphibians having a slender, wormlike body with regular annulations, and usually with minute scales imbedded in the skin. The limbs are rudimentary or wanting. It includes the cæcilians. Called also Gymnophiona and Ophidobatrachia .

Ophiomorphite noun [ Greek 'o`fis a serpent + ... form.] (Paleon.) An ammonite.

Ophiomorphous adjective [ Greek 'o`fis a serpent + -morphous .] Having the form of a serpent.

Ophiophagous adjective [ Greek 'o`fis a serpent + fagei^n to eat: confer French ophiophage .] (Zoology) Feeding on serpents; -- said of certain birds and reptiles.

Ophiophagus noun [ New Latin See Ophiophagous .] (Zoology) A genus of venomous East Indian snakes, which feed on other snakes. Ophiophagus elaps is said to be the largest and most deadly of poisonous snakes.

Ophism noun
1. Doctrines and rites of the Ophites.

2. Serpent worship or the use of serpents as magical agencies.

Ophite adjective [ Greek 'ofi`ths , from 'o`fis a serpent.] Of or pertaining to a serpent. [ Obsolete]

Ophite noun [ Latin ophites , Greek 'ofi`ths (sc. ...), a kind of marble spotted like a serpent: confer French ophite .] (Min.) A greenish spotted porphyry, being a diabase whose pyroxene has been altered to uralite; -- first found in the Pyreness. So called from the colored spots which give it a mottled appearance. -- O*phi"ic adjective

Ophite noun [ Latin Ophitae , plural See Ophite , adjective ] (Eccl.Hist.) A mamber of a Gnostic serpent-worshiping sect of the second century.

Ophiuchus noun [ Latin , from Greek ..., lit., holding a serpent; 'o`fis a serpent + ... to hold.] (Astron.) A constellation in the Northern Hemisphere, delineated as a man holding a serpent in his hands; -- called also Serpentarius .

Ophiura noun [ New Latin , from Greek ... snake + ... a tail.] (Zoology) A genus of ophiurioid starfishes.

Ophiuran adjective (Zoology) Of or pertaining to the Ophiurioidea. -- noun One of the Ophiurioidea.

Ophiurid noun (Zoology) Same as Ophiurioid .

Ophiurida noun plural [ New Latin ] (Zoology) Same as Ophiurioidea .

Ophiurioid adjective (Zoology) Of or pertaining to the Ophiurioidea. -- noun One of the Ophiurioidea. [ Written also ophiuroid .]

Ophiurioidea O`phi*u*roi"de*a noun plural [ New Latin , from Greek ... serpent + ... tail + ... form.] (Zoology) A class of star-shaped echinoderms having a disklike body, with slender, articulated arms, which are not grooved beneath and are often very fragile; -- called also Ophiuroida and Ophiuridea . See Illust. under Brittle star .

Ophryon noun [ New Latin , from Greek ..., ..., the brow.] (Anat.) The supraorbital point.

Ophthalmia (ŏf*thăl"mĭ*ȧ) noun [ French ophthalmie , Latin ophthalmia , from Greek 'ofqalmi`a , from 'ofqalmo`s the eye, akin to English optic . See Optic .] (Medicine) An inflammation of the membranes or coats of the eye or of the eyeball.

Ophthalmic (ŏf*thăl"mĭk; 277) adjective [ Greek 'ofqalmiko`s : confer French ophthalmique . See Ophthalmia .] (Anat.) Of, pertaining to, or in the region of, the eye; ocular; as the ophthalmic , or orbitonasal, nerve, a division of the trigeminal, which gives branches to the lachrymal gland, eyelids, nose, and forehead.

Ophthalmic region (Zoology) , the space around the eyes.

Ophthalmite noun [ Greek 'ofqalmo`s the eye.] (Zoology) An eyestalk; the organ which bears the compound eyes of decapod Crustacea.

Ophthalmological adjective Of or pertaining to ophthalmology.

Ophthalmologist noun One skilled in ophthalmology; an oculist.

Ophthalmology noun [ Greek 'ofqalmo`s the eye + -logy : confer French ophthalmologie .] The science which treats of the structure, functions, and diseases of the eye.

Ophthalmometer noun [ Greek 'ofqalmo`s eye + -meter .] (Physiol.) An instrument devised by Helmholtz for measuring the size of a reflected image on the convex surface of the cornea and lens of the eye, by which their curvature can be ascertained.

Ophthalmoscope noun [ From Greek 'ofqalmo`s the eye + -scope .] (Physiol.) An instrument for viewing the interior of the eye, particularly the retina. Light is thrown into the eye by a mirror (usually concave) and the interior is then examined with or without the aid of a lens. -- Oph*thal`mo*scop"ic adjective

Ophthalmoscopy noun [ Confer French ophthalmoscopie .]
1. A branch of physiognomy which deduces the knowledge of a person's temper and character from the appearance of the eyes.

2. Examination of the eye with the ophthalmoscope.

Ophthalmy noun Same as Ophthalmia .

Opianic adjective [ From Opium .] (Chemistry) Of, pertaining to, or designating, an organic acid obtained by the oxidation of narcotine.

Opianine noun (Chemistry) An alkaloid found in small quantity in opium. It is identical with narcotine.

Opianyl noun [ Opianic + - yl .] (Chemistry) Same as Meconin .

Opiate noun [ From Opium : confer French opiat .]

1. Originally, a medicine of a thicker consistence than sirup, prepared with opium. Parr.

2. Any medicine that contains opium, and has the quality of inducing sleep or repose; a narcotic.

3. Anything which induces rest or inaction; that which quiets uneasiness.

They chose atheism as an opiate .

Opiate adjective [ See Opium .] Inducing sleep; somniferous; narcotic; hence, anodyne; causing rest, dullness, or inaction; as, the opiate rod of Hermes. Milton.

Opiate transitive verb To subject to the influence of an opiate; to put to sleep. [ R.] Fenton.

Opiated adjective
1. Mixed with opiates.

2. Under the influence of opiates.

Opie noun Opium. [ Obsolete] Chaucer.

Opiferous adjective [ Latin opifer ; ops , opis , help + ferre to bear.] Bringing help. [ R.]

Opifice noun [ Latin opificium , from opifex workman. See Office .] Workmanship. [ Obsolete] Bailey.

Opificer noun An artificer; a workman. [ Obsolete] "The almighty opificer ." Bentley.

Opinable adjective [ Latin opinabilis .] Capable of being opined or thought. Holland.

Opination noun [ Latin opinatio . See Opine ,] The act of thinking; a supposition. [ Obsolete]

Opinative adjective Obstinate in holding opinions; opinionated. [ Obsolete] -- O*pin"a*tive*ly , adverb [ Obsolete] Burton. Sir T. More.

Opinator noun [ Latin ] One fond of his own opinious; one who holds an opinion. [ Obsolete] Glanvill.