picloram

noun

pi·​clo·​ram ˈpi-klə-ˌram  ˈpī- 

: a systemic herbicide C₆H₃Cl₃N₂O₂ that is persistent in the soil

Word History

Etymology

picolinic acid (acid obtained by oxidation of picoline) + chlor- + amine

First Known Use

1965, in the meaning defined above

Medical Definition

picloram

noun

pi·​clo·​ram ˈpik-lə-ˌram  ˈpīk- 

: a systemic herbicide C₆H₃Cl₃N₂O₂ that breaks down very slowly in the soil