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impotence due to alterations in the flow of blood to and from the penis.
Etymology: L, vasculum, little vessel; Gk, genein, to produce; L, in + potentia, power
impotence resulting from an inadequate supply of arterial blood to the penis or venous leakage.
Impotence due to an inadequate supply of arterial blood to the corpora cavernosa of the penis.
See also: impotence