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Related to LD50: LC50
LD50median lethal dose.
symbol for median lethal dose.
median lethal doseThe average amount of a drug, toxin, chemical substance/mixture or microorganism capable of killing 1/2 of the test animals exposed under specific test conditions. Median lethal dose (LD50) is commonly expressed in mg/kg, by oral intake or skin exposure.
LD50Lethal dose50, median lethal dose The radiation dose that is lethal to 50% of those exposed–2.5-6.0 Gy, assuming that optimal care—ie transfusions, trauma and nursing care, antibiotics and nutrition—is available
In pharmacology, a dose that proves lethal to 50% of a given population.
LD50The dose of a poison that kills half the subjects exposed to it. Used as a measure of the toxicity of drugs and other substances.
LD50see LETHAL DOSE.
Dosage of drug or numbers of microorganisms or other pathogens that kills 50% of a test population.
n See dose, lethal, median.
median lethal dose; the dose that will kill 50% of the tested group.