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单词 pyrethrine
释义

pyrethrinen.

Brit. /pʌɪˈriːθriːn/, U.S. /paɪˈriˌθrin/, /paɪˈrɛˌθrin/
Forms: 1800s pyrethrin, 1800s– pyrethrine.
Origin: Formed within English, by derivation. Etymons: pyrethrum n., -ine suffix5.
Etymology: < pyrethrum n. + -ine suffix5. In sense 1 after French pyrétrine (L.-V. Parisel 1833, in Jrnl. de pharm. 19 252). In sense 2 after German Pyrethrin (R. Buchheim 1876, in Archiv f. exper. Pathol. u. Pharmakol. 5 458).
Chemistry.
1. An acrid, resinous substance obtained from the root of the pellitory, Anacyclus pyrethrum. Obsolete. rare.
ΚΠ
1838 T. Thomson Chem. Org. Bodies 815 To the acrid substance M. Parisel has given the name of pyrethrin. But it appears..that it is not a simple vegetable principle as he supposed, but a compound of two oils and a resin.
2. = pellitorine n.
ΚΠ
1877 Jrnl. Chem. Soc. 32 ii. 195 From the Radix Pyrethri..a substance somewhat similar to chavicine was extracted... The author named it pyrethrine.
1895 Jrnl. Chem. Soc. 67 101 We propose provisionally to name it pellitorine. It is very probable that it is the same substance as that isolated..by Buchheim, in 1876, and named by him pyrethrine.
1967 Martindale's Extra Pharmacopoeia (ed. 25) 1544/2 Pyrethrum root..contains a crystalline substance, pellitorine (pyrethrine) which has an intensely pungent taste and produces a sialagogue effect.
This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).
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n.1838
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