/duy klawr"oh fi nok"see euh see"tik, -euh set"ik, duy klohr"-, duy klawr'oh fi nok'- duy klohr'-/ , Chem.
a white to yellow, crystalline powder, C 8 H 6 O 3 Cl 2 , slightly soluble in water: used for killing weeds. Also called 2, 4-D .
[ DI- 1 + CHLORO- 2 + PHEN- + OXY- 2 + ACETIC ACID ]