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- Ejaculation is the time during a man's orgasm when several muscle spasms push his semen out of the opening at the end of his penis.
- Semen analysis
- A semen analysis is a test in which a sample of semen is collected very soon after ejaculation and is put under a microscope. The semen analysis usually includes at least three ""scores"...
- ...ejaculation of semen from the penis.