trichlorophenoxyacetic acid

[ trahy-klawr-oh-fuh-nok-see-uh-see-tik, -set-ik, -klohr-, -klawr-, -klohr- ]

noun

, Chemistry.

1. a light-tan, water-insoluble solid, C 8 H 5 Cl 3 O 3 , used chiefly for killing weeds.

trichlorophenoxyacetic acid

/ traɪˈklɔːrəʊfəˌnɒksɪəˈsiːtɪk /

noun

1. an insoluble crystalline solid; 2,4,5-trichlorophenoxyacetic acid. It is a plant hormone and is used as a weedkiller. Formula: C 8 H 5 Cl 3 O 3 Also called2,4,5-T

Word History and Origins

Origin of trichlorophenoxyacetic acid¹

tri- + chloro- ² + phen(o)- + oxy- ² + acetic acid