| OPERABLE | • operable adj. Able to be operated or used. • operable adj. Able to be put into operation; practicable. • operable adj. Able to be treated by surgery. |
| OPERABLY | • operably adv. (Medicine) Such that it allows an operation to take place. • OPERABLE adv. that can be operated. |
| OPERANDS | • operands n. Plural of operand. • OPERAND n. a quantity on which a mathematical or logical operation is (to be) performed. |
| OPERANTS | • operants n. Plural of operant. • OPERANT n. an operator. |
| OPERATED | • operated v. Simple past tense and past participle of operate. • operated adj. (In combination) operated by the means specified e.g. a battery-operated toy. • operated adj. Having undergone an operation. |
| OPERATES | • operates v. Third-person singular simple present indicative form of operate. • OPERATE v. to perform a function. |
| OPERATIC | • operatic adj. Of, related to, or typical of opera. • OPERATIC adj. relating to opera. |
| OPERATOR | • operator n. One who operates. • operator n. A telecommunications facilitator whose job is to establish temporary network connections. • operator n. (Mathematics) A function or other mapping that carries variables defined on a domain into another variable… |
| OPERCELE | • OPERCELE n. an anatomical part that serves as a lid or cover, also OPERCULE, OPERCULUM. |
| OPERCULA | • opercula n. Plural of operculum. • OPERCULUM n. (Latin) an anatomical part that serves as a lid or cover, also OPERCELE, OPERCULE. |
| OPERCULE | • opercule n. Alternative form of operculum. • OPERCULE n. an anatomical part that serves as a lid or cover, also OPERCELE, OPERCULUM. |
| OPERETTA | • operetta n. (Music) A lighter version of opera with a frivolous story and spoken dialogue. • OPERETTA n. (Italian) a light musical drama with dialogue. |