| 词源 |
operand n.in mathematics, "a quantity or symbol to be operated on," 1886, from Latin operandum, neuter gerundive of operari "to work, labor" (in Late Latin "to have effect, be active, cause"), from opera "work, effort," related to opus (genitive operis) "a work" (from PIE root *op- "to work, produce in abundance"). updated on August 29, 2019 |