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acyclic terpene

noun Chemistry.
  1. See under terpene(def 2).
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terpene

[tur-peen]
noun Chemistry.
  1. (originally) any of a class of monocyclic hydrocarbons of the formula C10H16, obtained from plants.
  2. this class or any of its oxygenated derivatives, any hydrocarbon from the same source having the formula C5H8 (hemiterpene), the formula C10H16 with an aliphatic structure (acyclic terpene) or two-ringed structure (bicyclic terpene), the formula C15H24 (sesquiterpene), etc., and any of their oxygenated derivatives.
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Origin of terpene

1865–70; alteration of terebene, with p from turpentine
Related formster·pene·less, adjectiveter·pe·nic [tur-pee-nik] /tɜrˈpi nɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for acyclic terpene

terpene

noun
  1. any one of a class of unsaturated hydrocarbons, such as the carotenes, that are found in the essential oils of many plants. Their molecules contain isoprene units and have the general formula (C 5 H 8) n
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Derived Formsterpenic, adjective

Word Origin

C19: terp- from obsolete terpentine turpentine + -ene
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

acyclic terpene in Medicine

terpene

(tûrpēn′)
n.
  1. Any of various unsaturated hydrocarbons in essential oils and certain resins of plants and used in organic syntheses.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

acyclic terpene in Science

terpene

[tûrpēn′]
  1. Any of a class of hydrocarbons consisting of two or more isoprene (C5H8) units joined together. Simple terpenes are found in the essential oils and resins of plants such as conifers. Turpentine, for example, is such an oil. More complex terpenes include vitamin A, carotenoid pigments (such as lycopene), squalene, and rubber. Terpenes are used in organic synthesis.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.