The American Heritage® Dictionary of the English Language, 4th Edition
n. A crystalline compound, C14H30N2O4, formed by esterification of succinic acid with choline and used medically to produce brief but complete muscular relaxation.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a muscle relaxant for striated muscle that is used as an adjunct to anesthesia during certain surgical procedures
Word Usage
"Forensic tests indicate he was first injected in the thigh with a fast-acting muscle relaxant called succinylcholine, which is said to be hard to detect."