(programming) An operator taking three operands, specifically the operator ?: used in many programming languages to select one of two values depending on a third value.

plural of ternary operator

plural of binary operator

(Canada) An illegal marijuana-growing operation, usually indoors.

plural of grow operation

Alternative form of operations research

(arithmetic) Any of the four basic operators in arithmetic, namely addition, subtraction, multiplication and division.

(calculus) A differential operator that preserves mathematical smoothness.

plural of operating theatre

plural of operating room