: an organophosphate insecticide C4H10NO3PS that is used to control insects (such as aphids and thrips) on cultivated crops and ornamental plants
Orthene, the brand name for acephate, is both a contact spray and a systemic organophosphate that acts as a nerve poison.—Anne Raver, New York Times, 2 Apr. 1992
Note:
Acephate is typically available as a powder, dust, or spray or as granules. Like other organophosphate insecticides, acephate functions by inhibiting the action of the enzyme acetylcholinesterase.
Word History
Etymology
probably from acetyl + phosphoramidothioate, parts of its earlier systematic name