parathion

(par′ə t̸hī′än′)

☆

noun

a highly poisonous compound, CHONPS, commercially a colorless to dark-brown liquid, used as an agricultural insecticide

Origin: para- + thion(ic)

See parathion in American Heritage Dictionary 4

noun

A highly poisonous yellowish liquid insecticide, C₈H₁₀NO₅PS.

Origin:

Origin: para-¹

Origin: + thio(phosphate), phosphoric acid salt (thio- + phosphate)

Origin: + -on³

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