#initial-load-header-loader { visibility: hidden!important; } #initial-load-content { visibility: visible!important; } .expandable .expandable-control { display: none!important; } .expandable .expandable-content { display: block!important; visibility: visible!important; max-height: none!important; height: auto!important; }

picloram

[pik-luh-ram, pahy-kluh-]

noun Chemistry.

a colorless powder, C6H3Cl3N2O2, used as a systemic herbicide for controlling annual weeds and deep-rooted perennials on noncrop land.

Origin of picloram

1960–65; reverse compound from am(inotrich)lor(o)pic(olinic acid); see amino-, tri-, chloro-², picolinic

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019