Meaning of DDT in English

noun Etymology: dichlor- + diphenyl + trichlor- (from tri- + chlor-) Date: 1943 a colorless odorless water-insoluble insecticide C 14 H 9 Cl 5 that is an aromatic organochlorine banned in the United States that tends to accumulate and persist in ecosystems and has toxic effects on many vertebrates

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.