noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   An organophosphorus insecticide acaricide, [O,O-diethyl-O-4-nitro-phenylthiophosphate], a powerful, dangerously toxic insecticide. countable, uncountable
2. 2
   a colorless and odorless toxic oil used as an insecticide wordnet

Synonyms

All synonyms

ethyl parathionhazardous chemicalnitrophenyl phosphorothioatetoxic pesticide

Antonyms

All antonyms

benign chemicalbenign compoundharmless substance

Etymology

From para- (“p-”) + -thion.