1.The quality or condition of being impotent; lack of strength or power, animal, intellectual, or moral; weakness; feebleness; inability; imbecility. "Some were poor by impotency of nature; as young fatherless children, old decrepit persons, idiots, and cripples." "O, impotence of mind in body strong!"
2.Lack of self-restraint or self-control. (R.)
3.(Law & Med.) Lack of procreative power; inability to copulate, or beget children; also, sometimes, sterility; barrenness; specifically, in males: The inability to achieve or sustain a penile erection; erectile dysfunction.
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