what is the definition for potent
potent adjective. âº âpowerful, persuasive, or âeffective: This is the most potent âheadache âremedy you can get without a âprescription. Her âvoice has been a potent âforce on âconcert âstages for more than 30 âyears. potency noun [U] us /ËpoÊÂ·tÉnÂ·si/ âº Scientists are âtesting the potency of the new âdrug. noun [U] us /ËpoÊÂ·tÉnÂ·si/.