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median lethal dose (LD50)

Amount of a toxic material per unit of body weight of test animals that kills half the test population in a certain time.

Subject: 
Environmental Science [1]
Vocabulary: 
Chapter 11 - Risk, Toxicology, and Human Health [2]

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Links
[1] https://course-notes.org/subject/environmental_science [2] https://course-notes.org/vocabulary/chapter_11_risk