terpenoid

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ter·pene

 (tûr′pēn′)
n.
Any of various unsaturated hydrocarbons, C10H16, found in essential oils and oleoresins of plants such as conifers and used in organic syntheses.

[Obsolete terp(entine), variant of turpentine + -ene.]

ter·pe′nic adj.
ter′pe·noid′ adj. & n.

terpenoid

(ˈtɜːpəˌnɔid) chem
n
(Chemistry) a class of chemical compounds including all terpenes
adj
(Chemistry) relating to terpenes
References in periodicals archive ?
For example, if a bug chews on the leaves, the plant releases a series of signaling chemicals called Turpenoids.