/fawr"ayt, fohr"-/ , n. Chem.
a systemic insecticide, C 7 H 17 O 2 PS 3 , used esp. as a soil treatment for the control of numerous crop-damaging insects.
[ 1955-60; prob. by shortening of the name of one of its chemical components, ( phos ) phor ( odithio ) ate; see PHOSPHORO-, DITHIONOUS, -ATE 2 ]