LD 50 - определение. Что такое LD 50
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Что (кто) такое LD 50 - определение

A MEASURE OF THE LETHAL DOSE OF A TOXIN, RADIATION, OR PATHOGEN REQUIRED TO KILL HALF OF A TESTED POPULATION
LD-50; L.D. 50; Semilethal dose; Lethal Dose 50; LC50; LCt50; J.W. Trevan; Lethal dose 50; LD 50; LD50; Median lethal concentration; LD₅₀; LD50 poisoning test; Lethal concentration 50; Lethal dose 50/30; Ld50; Lethal dose, 50%; Lethal concentration, 50%; Lethal dose of radiation
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Median lethal dose         
In toxicology, the median lethal dose, LD50 (abbreviation for "lethal dose, 50%"), LC50 (lethal concentration, 50%) or LCt50 is a toxic unit that measures the lethal dose of a toxin, radiation, or pathogen. The value of LD50 for a substance is the dose required to kill half the members of a tested population after a specified test duration.
50/50 burger         
HAMBURGER PATTY
User:Hpsm005/sandbox; Slater's 50/50 restaurant
The 50/50 Burger patty is a half ground bacon, half ground beef burger patty developed by Scott Slater for Slater's 50/50 restaurant.Bacon, bacon, and more bacon adds up to a hit new burger - NY Daily News The 50/50 Burger consists of a 50% ground bacon and 50% ground beef patty topped with a sunny side up egg, avocado mash, pepper jack cheese and chipotle adobo mayo on a hamburger bun.
LD         
WIKIMEDIA DISAMBIGUATION PAGE
Ld; LD (disambiguation); Elldee; L.D.; L.d.; Ld.; L D
LAN Destination (Reference: ATM)

Википедия

Median lethal dose

In toxicology, the median lethal dose, LD50 (abbreviation for "lethal dose, 50%"), LC50 (lethal concentration, 50%) or LCt50 is a toxic unit that measures the lethal dose of a toxin, radiation, or pathogen. The value of LD50 for a substance is the dose required to kill half the members of a tested population after a specified test duration. LD50 figures are frequently used as a general indicator of a substance's acute toxicity. A lower LD50 is indicative of increased toxicity.

The test was created by J.W. Trevan in 1927. The term semilethal dose is occasionally used in the same sense, in particular with translations of foreign language text, but can also refer to a sublethal dose. LD50 is usually determined by tests on animals such as laboratory mice. In 2011, the U.S. Food and Drug Administration approved alternative methods to LD50 for testing the cosmetic drug Botox without animal tests.