lethal concentration 50


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lethal concentration 50

[¦leth·əl ‚käns·ən¦trā·shən ′fif·tē]
(physiology)
In a fire, the concentration of a gas or smoke that will kill 50% of the test animals within a given time of exposure. Abbreviated LC50.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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