ethinyl

noun
ethi·​nyl | \ e-ˈthī-nᵊl How to pronounce ethinyl (audio) , ˈe-thə-ˌnil How to pronounce ethinyl (audio) \
variants: or less commonly

Definition of ethinyl

: a monovalent unsaturated radical HC≡C− derived from acetylene by removal of one hydrogen atom

Examples of ethinyl in a Sentence

Recent Examples on the Web One environmental estrogen is ethinyl estradiol—a chemical found in birth control pills. National Geographic, 3 Feb. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ethinyl.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of ethinyl

1867, in the meaning defined above

History and Etymology for ethinyl

ethine ethyne + -yl

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Time Traveler for ethinyl

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The first known use of ethinyl was in 1867

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Dictionary Entries Near ethinyl

ethidium bromide

ethinyl

ethinyl estradiol

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Cite this Entry

“Ethinyl.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ethinyl. Accessed 23 Sep. 2021.

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More Definitions for ethinyl

ethinyl

noun
ethi·​nyl
variants: also ethynyl \ e-​ˈthīn-​ᵊl, ˈeth-​ə-​ˌnil \

Medical Definition of ethinyl

: a monovalent unsaturated radical HC≡C− derived from acetylene by removal of one hydrogen atom

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