tubocurarine

tubocurarine

[too-boh-kyoo-rahr-een, -in, tyoo-]
noun Pharmacology.
the principal active alkaloid of curare, C 38 H 44 Cl 2 N 2 O, used as a muscle relaxant, especially as an adjunct to anesthesia.

Origin:
1895–1900; < German Tubocurarin, equivalent to Tubocurar(e) (see tube, -o-, curare) + -in -in2

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WordNet
tubocurarine

noun
a toxic alkaloid found in certain tropical South American trees that is a powerful relaxant for striated muscles; "curare acts by blocking cholinergic transmission at the myoneural junction" 
WordNet® 3.0, © 2006 by Princeton University.
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