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单词 abietic
释义

abieticadj.

Brit. /ˌabɪˈɛtɪk/, U.S. /ˌæbiˈɛdɪk/
Origin: A borrowing from French. Etymons: French abiétique, acide abiétique.
Etymology: < French abiétique (in acide abiétique: S. Baup 1826, in Ann. de chimie et de physique 31 108, the passage translated in quot. 1826 for abietic acid n.) < classical Latin abiet- , abiēs fir tree, of unknown origin + French -ique -ic suffix.
Chemistry.
abietic acid n. a terpenoid acid which is the main constituent of rosin; (also) any of a group of resin acids having structures closely related to this.Abietic acid is a diterpenoid acid with a tricyclic molecule based on a phenanthrene ring system. Formula: C19H29COOH.
ΚΠ
1826 J. Griscom tr. S. Baup in Amer. Jrnl. Sci. 11 391 I have named the first abietic acid, and the second pinic acid.
1877 H. Watts Fownes's Man. Elem. Chem. (ed. 12) II. 602 Common resin or colophony..consists essentially of sylvic or abietic acid.
1934 C. C. Steele Introd. Plant Biochem. vi. xxi. 248 Abietic acid in rosin is a very complex acid containing both a sesquiterpene and a reduced phenanthrene nucleus.
1957 R. H. Thomson Naturally Occurring Quinones v. 263 The carbon skeleton shows a strong resemblance to that of typical diterpene derivatives, e.g. abietic acid.
2003 M. Svensson & J. Brinck in K. Holmberg Novel Surfactants (ed. 2) vi. 235 The soaps of abietic acids are complex mixtures of fatty acids and rosin acids, and are present in wood extracts from the paper pulp process.
This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2021).
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adj.1826
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