Home/ethionethion/eth-ee-on/US // ˈɛθ iˌɒn //埃蒂昂,埃提翁,埃蒂翁,埃蒂亚诺Definitionsn.名词 noun1 Biochemistry.: a highly toxic organophosphate, C9H22O4P2S3, used as a pesticide.Level 3Browse all words →