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(sperm) n. ( pl.spermatozoa) a mature male sex cell (see gamete). The tail of a sperm enables it to swim, which is important as a means for reaching and fertilizing the ovum (although muscular movements of the uterus may assist its journey from the vagina). See also acrosome, fertilization.

A spermatozoon.

Subjects: Science and Mathematics — Medicine and Health.

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