DDD definition

DDD

Dichlorodiphenyldichloroethane, an insecticide related to DDT
Direct distance dialing, a network-provided service that enables non-local telephone calls to be made without operator assistance
Die-deterioration doubling, a common form of mint-made error on coins that results from degradation of the die used to strike the coin
A designation on prerecorded compact discs indicating a "full digital recording" (recorded, mixed and mastered in digital); compare AAD, ADD, DAD.