Medical Dictionary

spermatoxin

noun sper·ma·tox·in \ˈspər-mə-ˌtäk-sən\

Medical Definition of SPERMATOXIN

:  a substance (as an antibody) poisonous to spermatozoa or derived from spermatozoa and tending to prevent conception

Browse

How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears