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LD50

LD50 Lethal dose 50, or median lethal dose: the amount of a pharmacological or toxic substance (such as ionizing radiation) that causes death in 50% of a group of experimental animals. For each LD50 the species and weight of the animal and the route of administration of the substance is specified. LD50s are used both in toxicology and in the bioassay of therapeutic compounds.

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"LD50." A Dictionary of Biology. . Encyclopedia.com. 11 Dec. 2017 <http://www.encyclopedia.com>.

"LD50." A Dictionary of Biology. . Encyclopedia.com. (December 11, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/ld50

"LD50." A Dictionary of Biology. . Retrieved December 11, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/ld50

LD50

LD50 An index of toxicity (lethal dose 50%), the amount of the substance that kills 50% of the test population of experimental animals when administered as a single dose.

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"LD50." A Dictionary of Food and Nutrition. . Encyclopedia.com. 11 Dec. 2017 <http://www.encyclopedia.com>.

"LD50." A Dictionary of Food and Nutrition. . Encyclopedia.com. (December 11, 2017). http://www.encyclopedia.com/education/dictionaries-thesauruses-pictures-and-press-releases/ld50

"LD50." A Dictionary of Food and Nutrition. . Retrieved December 11, 2017 from Encyclopedia.com: http://www.encyclopedia.com/education/dictionaries-thesauruses-pictures-and-press-releases/ld50