Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

nonoxynol–9

play
noun no·nox·y·nol–9 \nä-ˈnäk-si-ˌnȯl-ˈnīn, nə-, -ˌnōl-\

Definition of nonoxynol–9

  1. :  a spermicide used in contraceptive products



Origin and Etymology of nonoxynol–9

nonyl (the radical C9H19) + oxy- + phenol + 9 (from the fact that the compounds it contains have an average of nine ethylene oxide groups per molecule)


First Known Use: 1980


Medical Dictionary

nonoxynol–9

play play
noun no·nox·y·nol–9 \nä-ˈnäk-sə-ˌnōl-ˈnīn, -ˌnȯl-\

Medical Definition of nonoxynol–9

  1. :  a spermicide used in contraceptive products that consists of a mixture of compounds having the general formula C15H23(OCH2CH2)nOH with an average of nine ethylene oxide groups per molecule




Seen and Heard

What made you want to look up nonoxynol–9? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to take off or remove

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

confounded-person

Which is a synonym of indolent?

melancholy philistine lazy frenetic
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ