Abbreviation of Old Persian.

plural of operability

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

plural of NOT operator

(algebra) Any operation taking two operands.

(mathematics) An operation, written using the symbol +, that produces the sum of two operands

(mathematics) An operation of an algebraic structure playing a role analogous to multiplication.

(military) That portion of a theater of war] which an army passes over in attaining its object.

(operations) The application of scientific methods and techniques to problems of decision making, especially in business management and government administration.

(mathematics) The sequence in which the various operations in a mathematical expression are to be evaluated.