[], (Noun)

Definitions:
- A derivative of picolinic acid used as a herbicide and defoliant against deep-rooted weeds and woody plants; 4-amino-3,5,6-trichloropicolinic acid, C₅ NCl₃ NH₂ ·COOH.


Phrases:

Origin:
1960s; earliest use found in B.S.I. News. From pic- + -lor- (in chloro-) + -am (in amino-)