The plural form of ethinyl, referring to multiple ethinyl chemical groups or compounds containing the ethinyl group.
Simple plural of ethinyl (ethyne + -yl + -s). Follows standard English pluralization rules for chemical compounds.
While 'ethinyls' might sound like technical jargon, it's actually just chemists being practical—they need a word for when they're talking about multiple molecules or reactions involving ethinyl groups.
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