D (disambiguation)
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Look up D, d, d-, or ’d in Wiktionary, the free dictionary. |
D is the fourth letter of the Latin alphabet.
D or d may also refer to:
Music
- D (musical note)
- D major, a scale
- D minor, a scale
- D major chord; See Chord names and symbols
- Steinway D-274 or D, a concert grand piano manufactured by Steinway & Sons
- D Records, a former record label in Houston, Texas, US
- D, followed by a number can indicate a composition by Franz Schubert according to the Schubert Thematic Catalogue
Bands and musicians
- D (band), a Japanese rock/metal band
- "The D", one of the names of comedy rock band Tenacious D
- "d:" or "d:?", often used to refer to the Christian rock band Delirious?
- "D!" or "Dee!", names of Detlef Soost, a German dancer and choreographer
- D, the bass player for Australian band Testeagles
Albums
- D (Os Paralamas do Sucesso album), 1987
- D (White Denim album), 2011
- D (Deuter album), 1971
- Substance D, a drum and bass compilation album by Dieselboy
Entertainment and film
- D (film), a 2005 Bollywood film
- D Magazine, a magazine for the city of Dallas, Texas, US
- D, a weekly supplement to the Italian newspaper la Repubblica
- D (series), a video game series
- D (video game), a game released in 1995 for the PC, 3DO, PlayStation and Sega Saturn
- Count D, a character in the anime/manga series Pet Shop of Horrors
- D is the character in a series of novels titled Vampire Hunter D by Hideyuki Kikuchi
- D is a nickname given to Count Dracula in the novel Dracula written by Bram Stoker
- D, one of the characters in Another Code: Two Memories (Trace Memory)
- Initial D, a 1995 Japanese manga and anime about mountain drifting that has spawned several arcade and console games
- Substance D, a fictional recreational drug in the novel and film A Scanner Darkly
Science
- D region, part of the ionosphere in earth science
- Deci- (d), the SI prefix meaning one tenth
- Day (d), in metrology
Mathematics
- d, the symbol for the total differential operator; in a related but more general meaning, it is the exterior derivative operator in differential geometry
- Thirteen (D in hexadecimal and other positional numeral systems with a radix of 14 or greater)
- Blackboard bold , representing the unit disk in the complex plane, or the decimal fractions; See Number
- d, often a variable for the diameter of a circle in geometry
- D and d, the derivative operators
- Five hundred, (D in Roman numerals)
- Divisor function (d(n)), the number of positive divisors of an integer n
Chemistry, biology and medicine
- Aspartic acid (D), in biochemistry
- Deuterium (D), an isotope of hydrogen
- Deuteron (d), the nucleus of deuterium
- D- prefix, indicating a dextrorotatory compound
- Vitamin D
- ATC code D Dermatologicals, a section of the Anatomical Therapeutic Chemical Classification System
- Haplogroup D (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup
- Haplogroup D-M174, a Y-chromosomal DNA (Y-DNA) haplogroup
- Diarrhea (D)
Physics
- Electric displacement field (D)
- d, thickness, diameter, relative density, lattice plane spacing, and degeneracy of vibrational mode, in molecular spectroscopy
- Debye (D), a unit of electrical dipole moment
- D, the name of mesons containing charm quarks in particle physics
- Diffusion coefficient (D), in molecular physics
- D band (disambiguation)
Solid state physics
- Debye–Waller factor (D)
- D as a function of energy, D(E), or wavenumber, D(k), a symbol for the density of states
- Diode (D), an electronic component
Astronomy
- D (for Degenerate), a white dwarf in stellar classification
- D/, for "destroyed/disappeared" in comet nomenclature
- D, a February 16 through 29 discovery in the provisional designation of a comet or asteroid
Technology and engineering
- Sensitivity index (d'), a statistic used in signal detection theory
- D battery, a standard size dry cell battery in electronics
- D, Mitsubishi Electric's mobile phones in Japan
Computing
- D - Minimal Protection, a security division in the Trusted Computer System Evaluation Criteria
- -d, a suffix of a daemon, a computer program that runs as a background process
- .d, a pathname component suffix for a directory; for example with the init program
- .d, a file format used for Agilent MassHunter mass spectrometry software
Programming languages
- D (programming language), a C++-like programming language developed by Walter Bright
- D (data language specification), the basis for the database query language Tutorial D and others
- D, a programming language designed to be used with the DTrace dynamic tracing framework
Places
- Deutschland (international license plate code for Germany)
- D River, in Oregon, US
- Detroit, US (nickname)
Business and economics
- Demand (D), in economics
- Federal Reserve Bank of Cleveland (serial numbers of United States dollars)
- Dominion Resources (New York Stock Exchange ticker symbol)
- Penny (British pre-decimal coin) (d)
- d, the common US measurement of the penny size (an approximation of length), of a nail
Transportation
- D (New York City Subway service), US
- D (Los Angeles Railway), a line operated by the Los Angeles Railway, US
- Drive, the forward cruising gears in an automatic transmission
Linguistics
- Voiced alveolar stop consonant ([d] or /d/), in the International Phonetic Alphabet
- Dingir (D), the Sumerian sign for deity
- ’d, a contraction of the English words had and would
Other uses
- December, in calendars
- D (grade), a below average grade in education
- Defense (sports) (D)
- Died (d.)
- Daughter (d)
- D-Company, a criminal group
- Dominical letter D for a common year starting on Thursday
- Dominant person (D/), in dominance and submission
- Democrat, a member of the US Democratic Party
- D, a brassiere cup size
- d, the number of sides of dice in role-playing games
- 500 (number), D in Roman numerals
See also
- D- All Things Digital, an annual technology conference
- Denarius, a Roman coin
- Filetab-D, a port of the Filetab language based on decision tables
- D♯ (disambiguation)
- Dee (disambiguation)
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