An unsaturated hydrocarbon radical with the formula —C₅H₇; (now) specifically one containing a carbon–carbon triple bond. Usually as a formative element in chemical names.
Origin
Late 19th century; earliest use found in Henry Forster Morley (b. 1855). From pentyne + -yl.
Definition of pentynyl in US English:
pentynyl
(also pentinyl)
noun
Chemistry rare
An unsaturated hydrocarbon radical with the formula —C₅H₇; (now) specifically one containing a carbon–carbon triple bond. Usually as a formative element in chemical names.
Origin
Late 19th century; earliest use found in Henry Forster Morley (b. 1855). From pentyne + -yl.