19 Sep ld50 meaning
The test was created by J.W. It is the amount of the substance required (usually per body weight) to kill 50% of the test population. LD50: The 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.
The name LD 50 is an abbreviation for "Lethal Dose, 50%" or median lethal dose. A lower LD50 is indicative of increased toxicity. LD50 figures are frequently used as a general indicator of a substance's acute toxicity. In toxicology, the median lethal dose, LD50 (abbreviation for "lethal dose, 50%"), LC50 (lethal concentration, 50%) or LCt50 is a measure of the lethal dose of a toxin, radiation, or pathogen. LD50 figures are frequently used as a general indicator of a substance's acute toxicity. LD 50 is the amount of a material, given all at once, which causes the death of 50% (one half) of a group of test animals.
The LD50 measurement is usually expressed as the amount of toxin per kilogram or pound of body weight. It provides an objective measure to compare and rank the toxicity of substances. A lower LD50 is indicative of increased toxicity. Trevan in 1927 but has been phased out. Median lethal dose (LD50) is commonly expressed in mg/kg, by oral intake or skin exposure. The median lethal dose, LD50 (abbreviation for "lethal dose, 50%"), LC50 (lethal concentration, 50%) or LCt50 (lethal concentration and time) of a toxin, radiation, or pathogen is the dose required to kill half the members of a tested population after a specified test duration. LD stands for "Lethal Dose". LD50 is a measurement used in toxicology studies to determine the potential impact of toxic substances on different types of organisms. The LD 50 is one way to measure the short-term poisoning potential (acute toxicity) of a material.. Toxicologists can use many kinds of animals but most often testing is done with rats and mice. LD50 definition: the amount of ionizing radiation that will kill 50 per cent of a population in a... | Meaning, pronunciation, translations and examples LD50 definition is - the amount of a toxic agent (such as a poison, virus, or radiation) that is sufficient to kill 50 percent of a population of animals usually within a certain time. 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. lethal dose 50 (LD50): Standard measure of the toxicity of a material that will kill half of the sample population of a specific test animal in a specified period through exposure via ingestion, skin contact, or injection.
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