: substance that promotes the secretion or expulsion of
Origin and Etymology of -agogue
borrowed from French -agogue, borrowed from Late Latin -agōgum "promoting the expulsion of," borrowed from Greek -agōgon (originally modifying phármakon "drug, substance") from neuter of agōgós "leading, drawing forth," derivative (with reduplication) of ágein "to lead, carry off" — more at agent
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