DDT (redirected from Dichloro-diphenyl-trichloro-ethane)

DDT dichloro-diphenyl-trichloroethane, a powerful insect poison; used in dilution as a powder or in an oily solution as a spray.

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DDT (dd-t)

n.

Dichlorodiphenyltrichloroethane; a colorless contact insecticide, toxic to humans and animals when swallowed or absorbed through the skin, that has been banned in the United States for most uses since 1972.

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DDT (dichlorodiphenyltrichloroethane),

a nonbiodegradable water-insoluble chlorinated hydrocarbon once used worldwide as a major insecticide, especially in agriculture. In recent years knowledge of its adverse impact on the environment has led to restrictions in its use. In addition, because tolerance in formerly susceptible organisms develops rapidly, DDT has been largely replaced by organophosphate insecticides in the United States, where DDT was banned by the FDA in 1971. It is still used as a pediculicide where epidemic-scale delousing is justified, as in barracks and refugee camps. Its value as a scabicide is marginal, because scabies and crab lice quickly become resistant to it. See also scabicide.

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DDT

dichlorodiphenyltrichloroethane, a powerful insect poison; see chlorinated hydrocarbons.

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DDT

Dichloro-diphenyl-trichloroethane Environment A highly hepatotoxic and potentially neurotoxic insecticide that accumulates in fat; DDT is non-biodegradable and concentrates up the food chain. See Pesticide.