- operator
- operator [äp′ə rāt΄ər]n.1. a person who operates; specif.,a) a person who effects something; agent☆ b) a person whose work is operating a machine; specif., a person who operates a telephone switchboard [a telephone operator ]☆ c) a person engaged in financial, commercial, or industrial operations; owner or manager of a mine, railroad, factory, etc.☆ 2. Slang a clever, persuasive person who generally manages to achieve his or her ends3. Math. any symbol or term conventionally indicating that a certain process, substitution, etc. is to be carried out
English World dictionary. V. Neufeldt. 2014.