Etymograph

English

isoprene

Coined (1860) by British chemist C.

Formed from iso- ‘equal’ + prop- ‘three carbon prefix’ + -ene ‘alkene suffix’

Ancient Greek ἴσος ‘equal’

English iso-

French propionique ‘propionic’

English prop-

The story

Coined (1860) by British chemist C.

Today it means

noun An unsaturated hydrocarbon, C₅H₈, that is readily polymerized; natural rubber (caoutchouc) is cis-1,4-polyisoprene, and trans-1,4-polyisoprene is present in gutta-percha and balata; it is the structural basis for the terpenes.

Language periods are conventional ranges, not dates for this word.

Etymograph / isoprene