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Related to operand: Opcode
A quantity on which a mathematical or logical operation is performed.
[From Latin operandum, neuter gerundive of operārī, to operate; see operate.]
(Mathematics) a quantity or function upon which a mathematical or logical operation is performed
[C19: from Latin operandum (something) to be worked upon, from operārī to work]
a quantity upon which a mathematical operation is performed.
[1885–90; < Late Latin operandum, ger. of operārī; see operate]