['ɔpə'reɪʃ(ə)n] s This HTML5 player is not supported by your browser
derech. céim oibre micr. oibríocht (In mathematics, an action performed on a set of entities that produces a new entity. Examples of mathematical operations are addition and subtraction) gen. gníomhaíocht Inglés tesauro abrev., inf. o estados. A sequence of tactical actions with a common purpose or unifying theme (JP 1) ; A military action or the carrying out of a strategic, operational, tactical, service, training, or administrative military mission (JP 3-0) mil., abrev. op ; oper mil., logíst. Organised set of actions carried out, generally, by a joint force, or even an interallied or multinational one, on one or several field s of operations, in order to reach one or several military target s . (FRA) abrev., ferroc. oprtns (mouss negoc., abrev. o
