median lethal dose
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
Origin of median lethal dose
1Words Nearby median lethal dose
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use median lethal dose in a sentence
He must have taken enough roentgens of gamma and neutrons to reach or exceed the median-lethal dose.
Rip Foster in Ride the Gray Planet | Harold Leland Goodwin
British Dictionary definitions for median lethal dose
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 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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