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NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Fields of Study > biochemistry > bioactive properties > toxicity > lethal dose > lethal dose 50
Preferred Term:

lethal dose 50

Definition:
The amount of a single dose of a solid or liquid substance required to kill 50% of the tested population. It is usually expressed in mg/kg (milligram of material per kilogram of body weight) and is used for all routes of exposure other than inhalation. Compare "lethal concentration 50".
Concept Schemes:
NALT Full
NALT Core
Broader Concept:
lethal dose
Related Concepts:
Entry Terms:
  • LD50
  • lethal dose-50
  • LD-50
  • LD 50
URI:
https://lod.nal.usda.gov/nalt/49401
Download this Concept:
RDF/XMLCreated 2006-01-19, last modified 2017-10-11
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