单词 picloram 释义 picloram|pklrm|[f. picoline + chlor-2 + amine.]A white crystalline compound, 4-amino-3,5,6-trichloropicolinic acid, C6H3Cl3N2O2, which is used as a herbicide and defoliant against deep-rooted weeds and woody plants.1965Proc. Northeast....