Home › Words › F › fenthionfenthionfenthion means an organothiophosphate insecticide, avicide, and acaricide.EtymologyFrom phen(yl) + -thion.nounAn organothiophosphate insecticide, avicide, and acaricide.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.dichlofenthion 72% match — An organophosphate pesticide and nematicide. vs fenthion →fenamiphos 71% match — An organophosphate ACE inhibitor used as an insecticide. vs fenthion →disulfoton 67% match — A highly toxic organothiophosphate insecticide and acaricide, O,O-diethyl S-2-ethylthioethyl phosphorodithioate vs fenthion →acephate 66% match — An organophosphate foliar insecticide, O,S-dimethyl acetylphosphoramidothioate, used primarily against aphids vs fenthion →fenpropathrin 66% match — A particular pyrethroid acaricide and insecticide. vs fenthion →dicrotophos 66% match — An organophosphate acetylcholinesterase inhibitor used as an insecticide. vs fenthion →chlorphenvinfos 66% match — An organophosphorus compound used as an insecticide and an acaricide. vs fenthion →dioxathion 66% match — p-dioxane-2,3-diyl ethyl phosphorodithioate, an organophosphate pesticide used as an insecticide on livestock and as an acaricide on citrus fruits, deciduous fruits, and nuts. vs fenthion →