DDD


Meaning of DDD in English

noun Etymology: dichlor- + diphenyl + dichlor- Date: 1946 an insecticide C 14 H 10 Cl 4 closely related chemically and similar in properties to DDT

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