isoprene

[ahy-suh-preen]

i·so·prene

[ahy-suh-preen]
noun Chemistry.
a colorless, volatile, water-insoluble liquid, C5H8, of the terpene class, usually obtained from rubber or from oil of turpentine by pyrolysis: used chiefly in the manufacture of synthetic rubber by polymerization.

Origin:
1855–60; iso- + -pr- (< ?) + -ene; see terpene
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Isoprene is always a great word to know.
So is unstable. Does it mean:
pertaining to an aromatic compound, which contains one or more benzene or equivalent heterocyclic rings: many such compounds have an agreeable odor
noting compounds that readily decompose or change into other compounds
Collins
World English Dictionary
isoprene (ˈaɪsəʊˌpriːn)
 
n
Systematic name: methylbuta-1,3-diene a colourless volatile liquid with a penetrating odour: used in making synthetic rubbers. Formula: CH2:CHC(CH3):CH2
 
[C20: from iso- + pr(opyl) + -ene]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

isoprene i·so·prene (ī'sə-prēn')
n.
A colorless volatile hydrocarbon that is the naturally occurring basis of isoprenoids and that is used in the production of synthetic rubber.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
isoprene   (ī'sə-prēn')  Pronunciation Key 
A colorless, volatile liquid obtained from petroleum or coal tar and occurring naturally in many plants. It is used chiefly to make synthetic rubber. The isoprene in plants occurs in the chloroplasts and is used to build terpenes and other biologically important chemicals. Chemical formula: C5H8.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

isoprene

a colourless, volatile liquid hydrocarbon obtained in processing petroleum or coal tar and used as a chemical raw material. The formula is C5H8.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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