IEVref:881-17-05ID:
Language:enStatus: Standard
Term: median lethal dose (abbreviations: MLD or LD<sub>50</sub>)
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Definition: the uniform absorbed dose for a specified radiation, which kills, within a specified time, 50 per cent of individuals of a large group of animals or other living organisms

NOTE – It is usual to write the related period as index after the LD50, i.e. LD50/30 for LD50 after 30 days.


Publication date:1983-01
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