Dictionary: O-PER'CU-LI-FORM – O'PI-ATE

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O-PER'CU-LI-FORM, a. [L. operculum, a lid, and form.]

Having the form of a lid or cover. Say.

O-PER'CU-LUM, n.

  1. In botany, the lid of a pitcher-form leaf.
  2. The cover of the seed vessel of certain moss-like plants.
  3. In conchology, the plate which closes the orifice of a shell.

OP-ER-OSE, a. [L. operosus, from opera, operor.]

Laborious; attended with labor; tedious. Burnet.

OP-ER-OSE-NESS, n.

The state of being laborious. More.

O-PE-ROS'I-TY, n.

Laboriousness. [Not used.]

OPE-TIDE, n. [ope and tide.]

The ancient time of marriage from Epiphany to Ash-Wednesday. Bp. Hall.

O-PHI-CLEIDE, n. [Gr. οφις and κλεις.]

The largest brass wind instrument of the trumpet kind, used in the orchestra. It has a compass of three octaves.

O-PHID'I-AN, a. [Gr. οφις, a serpent.]

Pertaining to serpents; designating an order of vertebral animals destitute of feet or fins.

O-PHID'I-AN, n. [Gr. οφις, a serpent.]

An animal of the serpent kind, as the Boa, rattlesnake, adder and viper. The order is called Ophidia.

O-PHID'I-ON, n. [Gr. from οφις, a serpent.]

A fish of the anguilliform kind, resembling the common eel, but shorter, more depressed and of a paler color; found in the Mediterranean. Dict. Nat. Hist.

O-PHI-O-LOG'IC, or O-PHI-O-LOG'IC-AL, a.

Pertaining to ophiology. O-PHI-O-LOG'IST n. One versed in the natural history of serpents.

O-PHI-OL'O-GY, n. [Gr. οφις, serpent, and λογος, discourse.]

That part of natural history which treats of serpents, or which arranges and describes the several kinds. Ed. Encyc.

O-PHI-OM'AN-CY, a. [Gr. οφις, a serpent, and μαντεια, divination.]

In antiquity, the art of divining or predicting events by serpents, as by their manner of eating or by their coils. Encyc.

O-PHI-O-MORPH'OUS, a. [Gr. οφις, and μορφη, form.]

Having the form of a serpent. Ray.

O-PHI-OPH'A-GOUS, a. [Gr. οφις, a serpent, and φαγω, to eat.]

Eating or feeding on serpents. Brown.

O'PHITE, a. [Gr. οφις, a serpent.]

Pertaining to a serpent. Holwell.

O'PHITE, n. [Gr. οφις, a serpent, whence οφιτης, a stone spotted like a serpent.]

Green porphyry, or serpentine; a variety of greenstone of a dusky green color of different shades, sprinkled with spots of a lighter green; in other words, containing greenish white crystals of feldspar. Cleaveland.

OPH-I-U'CHUS, n. [Gr. οφιουχος; οφις, a serpent, and εχω, to have.]

A constellation in the northern hemisphere. Milton.

OPH-THAL'MIC, a. [See ophthalmy.]

Pertaining to the eye.

OPH-THAL-MOS'CO-PY, n. [Gr. οφθαλμος, the eye, and σκοπεω, to view.]

A branch of physiognomy which deduces the knowledge of a man's temper and manner from the appearance of the eyes. Encyc.

OPH-THAL-MO-TOL'O-GIST, n.

One versed in ophthalmotology.

OPH-THAL-MO-TOL'O-GY, n.

Science of ophthalmia or a treatise on it. Med. Journ.

OPH'THAL-MY, n. [Gr. οφθαλμια, from οφθαλμος, the eye.]

Inflammation of the eye or its appendages. Good.

O'PI-ATE, a.

  1. Inducing sleep; soporiferous; somniferous; narcotic. Bacon.
  2. Causing rest or inaction. Milton.

O'PI-ATE, n. [from opium.]

  1. Primarily, a medicine of a thicker consistence than sirup, prepared with opium. Encyc. A soft electuary. Electuaries when soft are called opiata. Parr. But in modern usage generally,
  2. Any medicine that contains opium and has the quality of inducing sleep or repose; a narcotic. Encyc.
  3. That which induces rest or inaction; that which quiets uneasiness. They chose atheism as an opiate. Bentley.