All articles starting with D
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Debugging
Debugging is the process of finding and removing defects, or bugs, from software or hardware; the term traces to a 1947 Harvard Mark II incident where a moth was found in a relay.
Debussy (Mercurian crater)
Debussy, a rayed central-peak impact crater on Mercury (about 81-85 km wide, 33.95 S, 347.46 E), named for French composer Claude Debussy in March 2010; formerly radar "feature A."
Debut (Björk album)
Debut (1993) is Björk Guðmundsdóttir's first international solo album, produced mainly with Nellee Hooper on One Little Indian, fusing house, jazz and electronic pop; it went platinum in the UK before Christmas 1993 and was followed by Post (1995).
Debut (song)
"Debut" (2024) is the first single by global girl group KATSEYE, released June 28, 2024 on HYBE x Geffen; written and produced by Ryan Tedder, Tyler Spry, and Grant Boutin with Omer Fedi, ahead of the EP SIS (Soft Is Strong).
Debut novel
Debut novel: the first novel a writer publishes, also called a first novel; a publishing event marking a new novelist's arrival, shaped by advances, BookScan data, agents, and debut-only prizes such as the PEN/Hemingway Award.
Debut Prize
The Debut Prize (премия «Дебют») was an independent Russian literary award for young authors writing in Russian, awarded from 2000 to 2015 and financed by the Pokolenie Foundation of Andrei Skoch.
Debut showcase
A debut showcase (데뷔 쇼케이스) is a K-pop event combining a press conference and first live performance for a new group on or near its launch day.
Debut's Plan
Debut's Plan (데뷔스 플랜) was Starship Entertainment's 2025 YouTube boy group survival show; 33 trainees, 21 finalists, eight-member debut lineup forming the group IDID, which debuted September 15, 2025.
Debutant nations at the FIFA Women's World Cup
A debutant nation at the FIFA Women's World Cup is a team playing the tournament for the first time; the 2023 edition featured eight debutants.
Debutante
Debutante: a young upper-class woman formally presented to society at a debutante ball. English in origin (Queen Charlotte's Ball, London Season), spread to America; declined after the 1960s, revived in the 2000s.
Debye (lunar crater)
Debye is a 127.03-km-diameter impact crater on the Moon's far side, centered at 49.43°N, 176.03°W. Named in 1970 for Dutch physicist and Nobel laureate Peter Debye (1884-1966).
Debye length
The Debye length, or Debye–Hückel screening length, is the distance over which electric fields are screened out in a plasma, so it appears electrically neutral beyond it.
Debye model
The Debye model, or Debye approximation, is a model of lattice heat capacity in solids that treats crystal vibrations as sound waves; Peter Debye proposed it in 1912.
Debye relaxation
Debye relaxation is the dielectric response of ideal, noninteracting permanent dipoles to an alternating electric field, proposed by Peter Debye and described by the Debye equation with one relaxation time.
Debye sheath
The Debye sheath, also called the Langmuir sheath, is a thin charged layer that forms where a plasma touches a surface, a few Debye lengths thick.
Debye shielding
Debye shielding is the reduction of an electric field inside a plasma over a distance called the Debye length, named for Peter Debye and Erich Hückel.
Debye temperature
The Debye temperature, symbol ΘD, is a characteristic temperature of a crystalline solid, introduced by Peter Debye in 1912, above which heat capacity follows the classical Dulong-Petit value.
Debye–Hückel theory
Debye–Hückel theory, also known as the Debye–Hückel rule, is a 1923 model by Peter Debye and Erich Hückel calculating ion activity coefficients in dilute electrolyte solutions.
Debye–Waller factor
The Debye–Waller factor, historically called the temperature factor, reduces an atom's scattering intensity to account for thermal vibration or static disorder, increasingly at larger scattering angles.
DEC Alpha
DEC Alpha, originally named Alpha AXP, is a 64-bit RISC computer architecture developed by Digital Equipment Corporation, announced in 1992 to replace the 32-bit VAX.
Dec Group (company)
Dec Group, founded by Frederic Dietrich and his sons in 1987, is a Swiss engineering company making powder handling and containment equipment for pharmaceutical and chemical industries.
DECA (organization)
DECA (DECA Inc.), originally Distributive Education Clubs of America, is a 501(c)(3) career and technical student organization founded in 1946, headquartered in Reston, Virginia, preparing high school and college students for marketing, finance, hospitality and management careers.
Deca-Dence
Deca-Dence (デカダンス) is a 2020 original sci-fi action TV anime by studio NUT, directed by Yuzuru Tachikawa and written by Hiroshi Seko; 12 episodes aired July–September 2020 about humans in a mobile fortress fighting the Gadoll.
Decaborane(14)
Decaborane(14) is a stable boron hydride, B10H14, a colorless, air-stable, malodorous crystalline solid first synthesized by Alfred Stock and later targeted by a 1950s US high-energy fuel program.
Decabromodiphenyl ether
Decabromodiphenyl ether, also known as DecaBDE, is a brominated flame retardant used in plastics, textiles, and electronics, phased out after being identified as persistent, bioaccumulative, and toxic.
Decad (Sumerian texts)
The Decad is a group of ten Sumerian literary compositions taught in a fixed order at the advanced stage of Old Babylonian scribal education, about 1900–1600 BC.
Décadas da Ásia
Décadas da Ásia (Decades of Asia) is a four-volume history of the Portuguese empire in Asia by João de Barros, published between 1552 and 1615.
Decade
Decade: a period of ten years, from Greek deka. Two counting conventions exist (0-to-9 digit decades like the 1980s, and ordinal decades from AD 1, since there is no year zero); also a ten-day unit in the 1793 French Revolutionary calendar.
Decade (Neil Young album)
Decade is Neil Young's triple-LP compilation album, released October 28, 1977 on Reprise: 35 tracks from 1966–1976 spanning Buffalo Springfield, CSNY, Crazy Horse, and the Stills-Young Band, with Young's famous 'middle of the road' liner notes.
Decade of Action for Road Safety
The Decade of Action for Road Safety 2011–2020 was a United Nations-proclaimed global initiative to stabilize and reduce road traffic deaths through five pillars of action.