ddt dds • de · · · Info · Definitions · Synonyms · Characters · · ddt · · Text Latin · · Script 3 · · Length 1 · · Syllables Definitions · · · (noun) an insecticide that is also toxic to animals and humans; banned in the United States since 1972. Synonyms: dichlorodiphenyltrichloroethane, DDT. · · Noun Definition 1 Synonyms · · · dichlorodiphenyltrichloroethane · · Synonym 1 Characters · · d latin small letter d U+0064 t latin small letter t U+0074