D (disambiguation)
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D is the fourth letter of the Latin alphabet. It can also refer to the following:
[edit] Science
[edit] Astronomy
- D, the white dwarf 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
[edit] General/other
- D, the symbol for aspartic acid in biochemistry
- D, the symbol of deuterium, an isotope of hydrogen, in chemistry
- D layer, part of the ionosphere in earth science
- D, standing for demand in economics
- D, a standard size dry cell battery in electronics
- D, the symbol for debye, a unit of electrical dipole moment
- <math>\mathbf{D}</math>, the recommended symbol for electric displacement field
- d (deci), the SI prefix meaning one tenth, 10-1
- d, the symbol for day in metrology
- Vitamin D
[edit] Genetics
- Haplogroup D (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup
- Haplogroup D (Y-DNA), a Y-chromosomal DNA (Y-DNA) haplogroup
[edit] Physics
- d, the symbol of the deuteron in particle physics
- D, the name of mesons containing charm quarks in particle physics
- D, the recommended symbol for diffusion coefficient in molecular physics
- d, the recommended symbol for: thickness, diameter, relative density (mechanics), lattice plane spacing (solid state physics), and degeneracy of vibrational mode, in molecular spectroscopy
- In solid state physics:
- D, the recommended symbol for the Debye-Waller factor
- D as a function of energy, D(E), or wavenumber, D(k), a symbol for the density of states
[edit] Mathematics
- d, the symbol for the total differential operator (partial differentials use ∂)
- D, often used as a digit meaning thirteen in hexadecimal and other positional numeral systems with a radix of 14 or greater
- Blackboard bold <math>\mathbb{D}</math>, 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
[edit] Computing
- D, the name of various programming languages:
- D (programming language), created by Walter Bright as a successor to C++
- Tutorial D, a database query language proposed by Christopher J. Date and Hugh Darwen
- Dialog Manager programming language
- The Data Language, an MS-DOS 4GL
- D functional programming language, a Haskell-like language, with type classes
- D programming language (Sun), designed to be used with the DTrace dynamic tracing framework
- Filetab-D, a language based on decision tables
- D, a security division ("Minimal Protection") in the TCSEC
- D, a shorthand for The Wall Street Journal's The D Conference: All Things Digital
- D (data language specification), the basis for Tutorial D and others
[edit] Arts and entertainment
[edit] Music
- D (musical note)
- The D major scale or chord
- The D minor scale or chord
- The prefix "D." to a piece of music by Franz Schubert, indicating its number in the catalogue of Otto Deutsch
- "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 (Japanese band), a Japanese visual kei band
- "D!" or "Dee!", names of Detlef Soost, a German dancer and choreographer
- D (album), a 2004 album by Japanese hard rock artist Des-ROW
- D, the bass player for Australian band Testeagles
[edit] Other
- D (film), a 2005 Bollywood film
- D Magazine, a magazine for the city of Dallas, Texas
- The middle initial "D" in the manga and anime One Piece, indicating people with a sort of connection
- D (video game), a game released in the mid-1990s for the 3DO, PlayStation and Sega Saturn
- Count D, a character in the anime/manga series Pet Shop of Horrors
- Vampire Hunter D, the title character in a series of novels by Hideyuki Kikuchi
- D, one of the characters in Trace Memory
- Initial D, a Japanese manga and anime about mountain drifting that has spawned several arcade and console games
[edit] Other uses
- D, in American politics, often used as an abbreviation for a Democrat
- D, a brassiere cup size
- d, used in role-playing games to denote the number of sides of dice
- d, an abbreviation in British currency (from the Latin denarius) for the pre-decimalization penny, worth 1/240th of a pound
- D, in calendars an abbreviation for the month December
- D, a below average grade in education
- D, the New York Stock Exchange ticker symbol for Dominion
- D, Germany (Deutschland) in international licence plate codes
- D (drive), the forward cruising gears in an automatic transmission
- D (New York City Subway service), a service on the New York City Subway
- In radio, the NATO D band, ranging from 1 to 2 GHz
- D, the number five hundred in Roman numerals
- D, often used in sports as an abbreviation for defence
- D/, used to denote the dominant person in a BSDM relation
- D, denoting the Federal Reserve Bank of Cleveland in the serial numbers of United States dollars
- Substance D, a fictional recreational drug in the novel and film A Scanner Darkly
- D, an alternative written from of the character 啲 In Hong Kong
- superscript D is the abbreviation for the determiner DINGIR "god" in cuneiform transcription.
| Latin letter disambiguation |
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de:D (Begriffsklärung) eu:D (argipena) fr:D is:D (aðgreining) nl:D no:D (andre betydninger) pt:D (desambiguação) ksh:D (Watt ėßß datt?) ru:D (значения) uk:D
