Look up DDD in Wiktionary, the free dictionary.

DDD or Triple D may refer to:

• 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

• 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

• 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

• 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.

• King Dedede, a fictional character in Nintendo's Kirby video-game series
• Di Di Di, an album by Hang on the Box
• 3D (disambiguation)
• D3 (disambiguation)
• DDDD (disambiguation)

This disambiguation page lists articles associated with the title DDD.
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