tabun

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ta·bun

(tā'bŭn),
An extremely potent cholinesterase inhibitor nerve gas; the lethal dose for humans is believed to be as low as 0.01 mg/kg; median lethal dosage (respiratory) is about 40 mg/minute/m3 for resting persons.
Farlex Partner Medical Dictionary © Farlex 2012

tabun

(tä′bo͝on′)
n.
A poisonous liquid that is soluble in organic solvents, C5H11N2O2P, used as a nerve gas in chemical warfare.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
A potent cholinesterase inhibitor that phosphorylates a reactive serine residue of acetyl cholinesterase, which affects nerves, muscles, and glands
Lethal dose 0.01 mg/kg
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

ta·bun

(tā'bŭn)
A chemical-warfare agent originally developed as an insecticide. Its NATO code is GA.
See also: trichothecene mycotoxin
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

tabun

A type of nerve gas that acts by interfering with the enzyme acetylcholinesterase, thereby prolonging the action of acetylcholine and causing usually fatal overaction of the parasympathetic nervous system.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005