hexaethyl tetraphosphate

[ hek-suh-eth-uh l ]
/ ˌhɛk səˈɛθ əl /

noun

a yellow, very poisonous liquid, (C2H5O)6P4O7, soluble in water, used as an insecticide.

Origin of hexaethyl tetraphosphate

First recorded in 1945–50; hexa- + ethyl
Also called HETP
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019