- a light-tan, water-insoluble solid, C8H5Cl3O3, used chiefly for killing weeds.
- 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
Trichlorophenoxyacetic Acid (noun) Definition, Meaning & Examples
