isoprene

noun

iso·​prene ˈī-sə-ˌprēn 

: a flammable liquid unsaturated hydrocarbon C₅H₈ used especially in synthetic rubber

Examples of isoprene in a Sentence

Recent Examples on the Web

Because their feedstock is plants that fixed atmospheric CO₂, their isoprene can be carbon-negative. — Srishti Gupta, Interesting Engineering, 16 Feb. 2026

The allocation of substantial resources towards isoprene formation indicates its importance. — Jay Kakade june 30, New Atlas, 30 June 2025

The mountains get their distinctive dark blue hue from the presence of the chemical isoprene found in many regional plants. — Travel + Leisure, 10 Mar. 2022

Word History

Etymology

probably from is- + propyl + -ene

First Known Use

1860, in the meaning defined above

Rhymes for isoprene

• acridine
• acrolein
• adenine
• alkylene
• aniline
• anthracene
• aquiline
• asphaltene
• atlantean
• atrazine
• butadiene
• butylene

Kids Definition

isoprene

noun

iso·​prene ˈī-sə-ˌprēn 

: a compound used especially in making synthetic rubber

Medical Definition

isoprene

noun

iso·​prene ˈī-sə-ˌprēn 

: a flammable liquid unsaturated hydrocarbon C₅H₈ used especially in synthetic rubber