Glossary of Common Urologic Terms

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The discharge of semen from the penis usually accompanied by orgasm.
Erectile Dysfunction (ED)
The inability to achieve or maintain an erection satisfactory for sexual relations to engage in sexual intercourse. May be referred to as impotence.
The state of swelling, hardness, and stiffness due to increased filling of the penis during sexual excitement.
External Beam Radiation (EBR)
A form of radiation therapy where radiation is delivered by a machine pointed at the specific area to be radiated. May be referred to as external beam radiation (EBR, XBR) or external beam radiation therapy (EBRT, XBRT).