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mean lethal dose

noun
1.
another term for median lethal dose

median lethal dose

noun
1.
the amount of a drug or other substance that, when administered to a group of experimental animals, will kill 50 per cent of the group in a specified time
2.
the amount of ionizing radiation that will kill 50 per cent of a population in a specified time
LD50
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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