: the quality or state of not being potent <drug-resistant bacteria are a virulent indicator of the growing impotence of antibiotics>
: an abnormal physical or psychological state of a male characterized by inability to engage in sexual intercourse because of failure to have or maintain an erection—called also erectile dysfunction
Inability to achieve or maintain erection of the penis; hence, inability to participate fully in sexual intercourse. Erectile impotence (failure to achieve erection) may have either physical causes (e.g., alcoholism, endocrine disease) or psychological ones (e.g., anxiety, hostility toward the partner). Ejaculatory impotence (inability to reach orgasm, sometimes with an erection maintained for a long time) nearly always has an emotional cause. See alsoViagra.