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Medical Definition of Tubocurarine chloride
1. C38H44Cl2N2O6-5H 2O; d-Tubocurarine chloride;an alkaloid (obtained from the stems of Chondodendron, particularly C. Tomentosum) that blocks the action of acetylcholine at the myoneural junction by occupying the receptors competitively; also blocks ganglionic transmission and releases histamine; used to produce muscular relaxation during surgical operations. (05 Mar 2000)