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picloram

[ pik-luh-ram, pahy-kluh- ]
/ ˈpɪk ləˌræm, ˈpaɪ klə- /
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noun Chemistry.
a colorless powder, C6H3Cl3N2O2, used as a systemic herbicide for controlling annual weeds and deep-rooted perennials on noncrop land.
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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. 2022
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