spermatoxin

noun
sper·​ma·​tox·​in | \ ˈspər-mə-ˌtäk-sən How to pronounce spermatoxin (audio) \

Medical Definition of spermatoxin

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

Comments on spermatoxin

What made you want to look up spermatoxin? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

authorized for issue (as a bond)

Get Word of the Day daily email!

Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!