[op-uh-reyt] /ˈɒp əˌreɪt/
verb (used without object), operated, operating.
to work, perform, or function, as a machine does:
This engine does not operate properly.
to work or use a machine, apparatus, or the like.
to act effectively; produce an effect; exert force or influence (often followed by on or upon):
Their propaganda is beginning to operate on the minds of the people.
to perform some process of work or treatment.
Surgery. to perform a surgical procedure.
(of a drug) to produce the effect intended.
to carry on transactions in securities, or some commodity, especially speculatively or on a large scale.
Informal. to use devious means for one’s own gain; insinuate oneself; finagle:
a man who knows how to operate with the ladies.
verb (used with object), operated, operating.
to manage or use (a machine, device, etc.):
to operate a switchboard.
to put or keep (a factory, industrial system, ranch, etc.) working or in :
to operate a coal mine.
to bring about, effect, or produce, as by action or the exertion of force or influence.
to function or cause to function
(transitive) to control the functioning of: operate a machine
to manage, direct, run, or pursue (a business, system, etc)
(intransitive) to perform a surgical operation (upon a person or animal)
(intransitive) to produce a desired or intended effect
(transitive) usually foll by on. to treat or process in a particular or specific way
(intransitive) to conduct military or naval operations
(intransitive) to deal in securities on a stock exchange
c.1600, “to be in effect,” back-formation from operation, or else from Latin operatus, past participle of operari “to work, labor, toil, take pains” (in Late Latin “to have effect, be active, cause”). Surgical sense is first attested 1799. Meaning “to work machinery” is from 1864 in American English. Related: Operated; operating. Operating system in the computer sense is from 1961.
operate op·er·ate (ŏp’ə-rāt’)
v. op·er·at·ed, op·er·at·ing, op·er·ates
To perform surgery.
- Ophthalmic solution
ophthalmic solution n. A sterile solution that is free from foreign particles and is compounded and dispensed for eyedrops.
- Ophthalmic optician
noun 1. See optician
ophthalmodiaphanoscope oph·thal·mo·di·aph·a·no·scope (ŏf-thāl’mō-dī-āf’ə-nə-skōp’, ŏp-) n. An instrument for viewing the interior of the eye by transmitted light.
1. a combining form meaning “eye,” used in the formation of compound words: ophthalmology. combining form 1. indicating the eye or the eyeball: ophthalmoscope before vowels ophthalm-, word-forming element meaning “eye,” mostly in plural, “the eyes,” from Greek ophthalmo-, comb. form of ophthalmos “eye,” originally “the seeing,” of uncertain origin. Perhaps from ops “eye” (see […]