WordReference Random House Unabridged Dictionary of American English © 2025
pic•lo•ram
(pik′lə ram′, pī′klə-),USA pronunciation n. [Chem.]
- Botany, Chemistry, Pest Controla colorless powder, C6H3Cl3N2O2, used as a systemic herbicide for controlling annual weeds and deep-rooted perennials on noncrop land.
- 1960–65; reverse compound from am(inotrich)lor(o)pic(olinic acid); see amino-, tri-, chloro-, picolinic