(*) 1. The amount of nuclear irradiation of the whole body which would be fatal to 50 percent of the exposed personnel in a given period of time. 2. The dose of chemical agent that would kill 50 percent of exposed, unprotected, and untreated personnel.
MEAN LETHAL DOSE
Meaning of MEAN LETHAL DOSE in English
DOD English dictionary of military terms. Английский словарь военных терминов DOD. 2012