also ethynyl noun Etymology: ethine ethyne + -yl Date: 1929 a monovalent unsaturated radical HC≡C– derived from acetylene by removal of one hydrogen atom
ETHINYL
Meaning of ETHINYL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012