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semen


semensearch for term

Fluid which comes from the urethra of the penis during ejaculation, and which usually contains sperm. Sperm cells are only about 2-5% of hat's in semen: semen also contains amino acids, enzymes, flavins, fructose, prostaglandins, proteins, acids and other elements. In human reproduction, semen both helps sperm "swim," and counteract the acidic nature of the vagina, which would otherwise be hostile to sperm.

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