ethynyl
noun
ethy·nyl
less common spelling of ethinyl
: a monovalent unsaturated radical HC≡C− derived from acetylene by removal of one hydrogen atom
Cite this Entry
“Ethynyl.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ethynyl. Accessed 27 Nov. 2025.
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