terpenoid

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terpenoid

[′tər·pə‚nȯid]
(organic chemistry)
Any compound with an isoprenoid structure similar to that of the terpene hydrocarbons.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
This very diverse group of compounds is presumably generated by an oxidative cleavage of the carotenoid (tetraterpenoids, [C.sub.40]) molecule between the [C.sub.9] and [C.sub.10] positions, yielding apocarotenoids (also called norisoprenes) with 13 carbon atoms.
Carotenoids, the C40 tetraterpenoids derived from head-to-tail condensation of eight isoprenoid units, are notable for their wide distribution, structural diversity, and various functions.
The chemical structure of lutein ([C.sub.40][H.sub.56][O.sub.2]) consists of 40-carbon, hence known as tetraterpenoids, with alternating single and double carbon-carbon bonds with attached methyl side groups.