Sex Glossary: E
ejaculation: When a man emits sperm from his penis as a result of orgasm.
epididymis: A lumpy section that lies on top of the testicle.
epididymitis: An infection of the epididymis gland; easily diagnosed by a doctor and treated with antibiotics.
erect: Stiff and hard, generally referring to a penis during a state of arousal.
erectile dysfunction; ED: Physical or psychological condition when a man is unable to have an erection (varying degrees of severity).
erection: A penis that is in a state of arousal, becoming stiff and hard.
estrogen: A female hormone; plays a key role in triggering the process needed to create a baby; no longer produced after menopause.