spermatocide
/spɜrˈmætəˌsaɪd/
noun
- A substance that kills sperm cells, used especially in contraceptives.
- She chose a contraceptive foam with a spermatocide for extra protection.
- Many spermicidal gels contain a spermatocide as their active ingredient.
- The spermatocide in the cream prevents sperm from reaching the egg.
Synonyms