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Medical Definition of Sperm motility

Sperm motility: The percentage of all moving sperm in a semen sample. In a semen sample, 50% or more of the sperm should normally be moving rapidly.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=40283
Last Editorial Review: 5/13/2016

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