isoprenoidadj.n.
/ˈʌɪsəprɪnɔɪd//ʌɪsəʊˈpriːnɔɪd/ Chemistry.
A. adj.
Containing or designating the isoprene unit; having a molecular structure composed of such units.
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isoprenoid1945
1945 Chem. Abstr. 39 5887/1 Other isoprenoid hydrocarbons, as isoprene, diterpenes, triterpenes, sesquiterpenes, are either entered at their trivial names or named systematically.
1958 Proc. National Acad. Sci. U.S.A. 44 167 Squalene synthesis from branched-chain subunits will be treated as a two stage process, namely (a) the condensation of three ‘isoprenoid’ units to a sesquiterpene (C15) [etc.].
1971 Nature 24 Dec. 449/1 Pristane (2,6,10,14-tetramethylpentadecane) and phytane (2,6,10,14-tetramethylhexadecane), isoprenoid hydrocarbons, which probably arise from diagenetic degradation of algal chlorophylls, were present [in the sediment] in trace amounts.
B. n.
An isoprenoid compound.
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isoprenoid1965
1965 New Scientist 24 June 867/2 The branched-chain compounds called isoprenoids, which have a branch every fourth carbon atom.
1972 Science 9 June 1121/2 After 2 years, isoprenoids..and alicyclic and aromatic hydrocarbons remained prominent in the polluted sediments.
This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2018).
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adj.n.1945