A table on which a patient lies during a surgical operation.

(medicine) Such that it allows an operation to take place.

(computing) A person who oversees the day-to-day operation of a computer system

a military strategy employing combined arms to accomplish a specified objective.

(mathematics) A branch of functional analysis, being the study of linear operators on function spaces.

plural of operative word

(military, psychiatry) The acute psychological trauma experienced in combat environments which can lead to combat fatigue.

Relating to, or characteristic of, the genre of space opera.

Synonym of wireless operator or radio operator (a person who operates a wireless set / radio communications device)

(mathematics, mathematical analysis) An operator defined as a function of the differentiation operator (the operator which maps functions to their derivatives).