OPERA
OP'ERA, noun [Latin opera work, labor.]A dramatic composition set to music and sung on the stage, accompanied with musical instruments and enriched with magnificent dresses, mac...
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Webster's Dictionary 1828
American Dictionary of the English Language, Noah Webster, 1828.
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OPERABLE
OP'ERABLE, adjective Practicable. [Not used.]
OPERANT
OP'ERANT, adjective [See Operate.] Having power to produce an effect. [Not used. We now use operative.]
OPERATE
OP'ERATE, verb intransitive [Latin operor; Heb. signifies to be strong, to prevail.]1. To act; to exert power or strength, physical or mechanical. External bodies operate on ani...
OPERATICAL
OPERAT'ICAL, adjective Pertaining to the opera; a word used by musicians.
OPERATING
OP'ERATING, participle present tense Acting; exerting agency or power; performing some manual act in surgery.
OPERATION
OPERA'TION, noun [Latin operatio.]1. The act or process of operating; agency; the exertion of power, physical, mechanical or moral.Speculative painting without the assistance of...
OPERATIVE
OP'ERATIVE, adjective1. Having the power of acting; exerting force, physical or moral; having or exerting agency; active in the production of effects.In actions of religion we s...
OPERATOR
OP'ERATOR, noun1. He or that which operates; he or that which produces an effect.2. In surgery, the person who performs some act upon the human body by means of the hand, or wit...
OPERCULATE
OPER'CULATE,OPER'CULATED, adjective [Latin operculatur, from operio, to cover.] In botany, having a lid or cover, as a capsule.
OPERCULATED
OPER'CULATED, a. [L. operculatur, from operio, to cover.] In botany, having a lid or cover, as a capsule.
OPERCULIFORM
OPER'CULIFORM, adjective [Latin operculum, a lid, and form.] Having the form of a lid or cover.
OPEROSE
OPERO'SE, adjective [Latin operosus, from opera, operor.]Laborious; attended with labor; tedious.
OPEROSENESS
OPERO'SENESS, noun the state of being laborious.
OPETIDE
O'PETIDE, noun [ope and tide.] The ancient time of marriage, from Epiphany to Ash Wednesday.
OPHIDIAN
OPHID'IAN, adjective [Gr. a serpent.] Pertaining to serpents; designating an order of vertebral animals destitute of feet or fins.
OPHIDION
OPHID'ION, noun [Gr. 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.
OPHIOLOGIC
OPHIOLOG'IC,OPHIOLOG'ICAL, adjective Pertaining to ophiology.
OPHIOLOGICAL
OPHIOLOG'ICAL, a. Pertaining to ophiology.
OPHIOLOGIST
OPHIOL'OGIST, noun One versed in the natural history of serpents.
OPHIOLOGY
OPHIOL'OGY, noun [Gr. serpent, and discourse.]That part of natural history which treats of serpents, or which arranges and describes the several kinds.
OPHIOMANCY
OPHIOM'ANCY, noun [Gr. a serpent, and divination.]In antiquity, the art of divining or predicting events by serpents, as by their manner of eating or by their coils.
OPHIOMORPHOUS
OPHIOMORPH'OUS, adjective [Gr. form.] Having the form of a serpent.
OPHIOPHAGOUS
OPHIOPH'AGOUS, adjective [Gr. a serpent, to eat.] Eating or feeding on serpents.
OPHITE
O'PHITE, noun [Gr. a serpent.] Pertaining to a serpent.O'PHITE, adjective [Gr. a serpent, whence a stone spotted like a serpent.]Green porphyry, or serpentine; a variety of gree...
OPHITHALMIC
OPHITHAL'MIC, adjective [See Ophthalmy.] Pertaining to the eye.
OPHIUCHUS
OPHIU'CHUS, noun [Gr. a serpent, and to have.]A constellation in the northern hemisphere.