ABC - DEF - GHI - JKL - MNO - PQRS - TUV - WXYZ Languages: LD50
Similar term(s): lethal dose 50, median lethal dose, LC50.
Definition:
The amount of a chemical that is lethal to one-half (50%) of the experimental animals exposed to it.
LD50s are usually expressed as the weight of the chemical per unit of body weight (mg/kg).
It may be fed (oral LD50), applied to the skin (dermal LD50), or administered in the form of vapors (inhalation LD50).
Source: University of Guelph
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