DDD

• Defined daily dose, a World Health Organization statistical measure of drug use • Degenerative disc disease, a common disorder of the lower spine • Dense deposit disease, the preferred name for Membranoproliferative glomerulonephritis Type II • Dichlorodiphenyldichloroethane, a breakdown product of DDT • Dual pacing, dual sensing and dual response modes of a pacemaker • Depersonalization-derealization disorder, a psychiatric disorder involving feelings of oneself or the world being unreal, distant, or detached ==Computers and technology==

• Data Display Debugger or GNU DDD, a popular graphical user interface for command-line debuggers • Digital Divide Data, a social enterprise providing disadvantaged youths in Cambodia, Laos and Kenya with IT education and training • Direct distance dialing, a method for telephone subscribers to call long-distance numbers without operator assistance • DDD, the SPARS code for a CD that was recorded, mixed, and mastered digitally • Domain-driven design, a methodology and set of priorities for programming • Developer! Developer! Developer!, a series of community conferences for software developers • 3D Systems (DDD), a company that makes devices for stereolithography or 3D printing ==Arts and entertainment==

• DDD (album), by Poster Children, 2000, named after the SPARS code • "DDD" (Koda Kumi song), 2005 • "DDD" (EXID song), 2017 • "D.D.D.", a 2019 song by The Boyz • Diners, Drive-Ins and Dives, an American food TV series • David Dorfman Dance, an American dance company • Def Dames Dope, Belgian pop group from 1990s ==Other uses==

• DDD, a bra size • Delta Delta Delta, a national collegiate sorority • Denali Destroyer Dolls, roller derby league based in Wasilla, Alaska • Dictionary of Deities and Demons in the Bible, an academic reference work • Destroy Dick December, an Internet challenge and follow-up to No Nut November • Die-deterioration doubling, a minting error on coins • Doe Triple-D, a make of tractor • Dhaalu Airport, Dhaalu Atoll, Maldives, IATA code DDD • Dongotono language of Southern Sudan, ISO 639-3 language code ddd • Doomsday device, a hypothetical construction — usually a weapon or weapons system — which could destroy all life on a planet, particularly Earth, or destroy the planet itself, bringing "doomsday", a term used for the end of planet Earth. ==See also==