parathion

noun para·thi·on \ˌpa-rə-ˈthī-ən, -ˌän\

Definition of PARATHION

: an extremely toxic insecticide C₁₀H₁₄NO₅PS

para- + thiophosphate + ¹-on

First Known Use: 1947

Medical Dictionary

noun para·thi·on \ˌpar-ə-ˈthī-ən, -ˌän\

: an extremely toxic thiophosphate insecticide C₁₀H₁₄NO₅PS

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