Definify.com

Webster 1913 Edition

(kr?-t?n′?-l?n)

Noun.

[

Crotonic

+ acet-

ylene

(Chem.)

A colorless, volatile, pungent liquid,

C4H6

, produced artificially, and regarded as an unsaturated hydrocarbon of the acetylene series, and analogous to crotonic acid.

crotonylene ‎(plural crotonylenes)

(organic chemistry) A colourless, volatile, pungent liquid, C₄H₆, regarded as an unsaturated hydrocarbon of the acetylene series, analogous to crotonic acid.