plural sperm also sperms
biology
1
: a cell that is produced by the male sexual organs and that combines with the female's egg in reproduction
The sperm fertilizes the egg.
a man with a low sperm count [=a man whose body produces few active sperm]
called also sperm cell
2
: fluid that is produced by the male sexual organs which contains sperm cells : semen
Cite this Entry
“Sperm.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/sperm. Accessed 15 Jun. 2026.
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