coniine

American  

[koh-nee-een, -in, -neen] / ˈkoʊ niˌin, -ɪn, -nin /

Also conin

noun

1. a volatile, highly poisonous alkaloid, C 8 H 17 N, constituting the active principle of the poison hemlock.

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coniine British  

/ -nɪɪn, -nɪn, -niːn, ˈkəʊnɪn, ˈkəʊnɪˌiːn, ˈkəʊniːn /

noun

1. Also called: cicutine.   conicine.  a colourless poisonous soluble liquid alkaloid found in hemlock; 2-propylpiperidine. Formula: C 5 H 10 NC 3 H 7

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Etymology

Origin of coniine

First recorded in 1825–35; coni(um) + -ine ²

Example Sentences

Hemlock on the other hand contains five alkaloids - coniine, conhydrine, pseudoconhydrine, methyl-coniine and ethyl-piperidine - which cause violent vomiting and paralysis of the nervous system.

From BBC • Jul. 10, 2023

The B method yields a less percentage of coniine than A, but of a better quality.

From Scientific American Supplement, No. 315, January 14, 1882 by Various

The synthesis of coniine by Ladenburg is one of the most notable achievements of modern chemistry.

From Scientific American Supplement, No. 623, December 10, 1887 by Various

The riper the seeds, the greater is the percentage yield of oily coniine, and the sooner is the distillation ended.

From Scientific American Supplement, No. 315, January 14, 1882 by Various

The portion distilling over at 168� C. to 169� C. is pure coniine, and represents 60 per cent. of the crude coniine.

From Scientific American Supplement, No. 315, January 14, 1882 by Various