terpene(redirected from Hemiterpenes)
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Any of various unsaturated hydrocarbons, C10H16, found in essential oils and oleoresins of plants such as conifers and used in organic syntheses.
ter′pe·noid′ adj. & n.
(Elements & Compounds) 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 (C5H8)n
[C19: terp- from obsolete terpentine turpentine + -ene]
1. any of a class of monocyclic hydrocarbons of the formula C10H16, obtained from plants.
2. any of the oxygenated derivatives of this class.