median lethal dose
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noun
the quantity of a lethal substance, as a poison or pathogen, or of ionizing radiation that will kill 50 percent of the organisms subjected to it in a specified time period. Symbol: LD50
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Origin of median lethal dose
First recorded in 1945–50
Words nearby median lethal dose
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for median lethal dose
British Dictionary definitions for median lethal dose
median lethal dose
mean lethal dose
noun
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
the amount of ionizing radiation that will kill 50 per cent of a population in a specified time
Abbreviation: LD 50
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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