Delta
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Mwtoews
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{{wiktionarypar|delta}}
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'''Delta''' most commonly refers to:
* [[Delta (letter)]], the letter Δ or δ in the Greek alphabet, also used as a mathematical symbol
* [[River delta]], a landform at the mouth of a river
Delta also has the following meanings:
==Abbreviations==
* [[DELTA (ELT)]], an advanced diploma in English language teaching
* [[DELTA (taxonomy)]], the ''DE''scription ''L''anguage for ''TA''xonomy
==Places==
===Canada===
* [[Delta, British Columbia]] (the town located immediately south of the Fraser River delta)
**[[Delta (provincial electoral district)]]
**[[Delta (electoral district)]], a federal electoral district
===Nigeria===
* [[Delta State, Nigeria]]
===United States===
* [[Delta, Colorado]]
* [[Delta, California]]
* [[Delta, Iowa]]
* [[Delta, Kentucky]]
* [[Delta, Louisiana]]
* [[Delta, Missouri]]
* [[Delta, Ohio]]
* [[Delta, Pennsylvania]]
* [[Delta, Utah]]
* [[Delta, Wisconsin]]
* [[Delta Charter Township, Michigan]]
* [[Delta County, Colorado]]
* [[Delta County, Michigan]]
* [[Delta County, Texas]]
See also: [[Mississippi Delta (disambiguation)]]
==Science and technology==
===Astronomy and physics===
* [[Delta baryon]], a subatomic particle with spin 3/2
* In [[Bayer designation]], one of the stars in a constellation (e.g., Delta Cygni)
* [[Delta-v]], a term used in astrodynamics for the total 'effort' to change from one space trajectory to another
===Aeronautics===
* [[Delta wing]]
* [[Delta rocket]], a family of launch vehicles
* [[Delta Formation (Aircraft)]], a formation flying manoeuvre in the shape of a V
===Earth sciences===
* [[Delta switching]], the process by which some rivers change their course near their deltas
* [[River delta]], a landform at the mouth of a river
* [[Tropical Storm Delta (2005)]]
===Mathematics and computer science===
* Δ often denotes a [[difference operator|difference]]; δ can represent a small change or amount
* In elementary set theory and Boolean algebras, Δ usually denotes the [[symmetric difference]]
* An inverted delta (<math>\nabla</math>), known as [[del]] or [[Nabla symbol|nabla]], is used as a [[vector operator|vector differential operator]]
* [[Kronecker delta]], a function of two variables which is 1 when they are equal
* [[Dirac delta function]], a distribution used as an approximation for a spike function
* [[Delta encoding]], a technique in computer communications and version-control
* In [[fuzzy logic#formal fuzzy logic|formal fuzzy logic]], Δ denotes a unary connective representing the full truth of a proposition (often called Baaz Delta connective)
* Δ indicates a change of state between two before and after state schemas in the [[Z notation]]
===Mathematical finance===
* One of the [[Greeks (finance)|Greeks]] used in option and derivatives pricing representing the rate of change of the option price with respect to changes in the underlying price
===Medicine and biology===
* [[Delta (ligand)]], an activator of the [[Notch signaling]] pathway
* Single use of Delta (Δ) is an abbreviation for the [[diagnosis]] of a patient
* Double use of Delta (ΔΔ) is an abbreviation for the [[differential diagnosis]] of a patient
===Military===
* [[Delta Force]], a U.S. Army special force
* [[Beredskapstroppen]], a Norwegian special police forces team
* [[Delta class submarine]], a Soviet / Russian SSBN submarine series (NATO reporting name)
==Companies and products==
* [[Delta Air Lines]], a major U.S. airline
* [[Delta (computer)]], a Russian ZX Spectrum clone
* [[Delta Dental]], an American dental plan system
* [[Delta Faucet Company]], a plumbing fixtures company
* [[Delta Holding]], an import-export, banking, insurance and retail corporation in Serbia
* [[Delta Hotels]], a Canadian hotel chain
* [[Delta Machinery]], a stationary power tools and equipment company
* [[Delta Motor Corporation]], a South African car manufacturer owned by General Motors
* [[Delta robot]], a specialized type of robot
* [[GM Delta platform]], a compact car automobile platform from General Motors
* [[Ilford Delta]], a photographic film
* [[Lancia Delta]], a rally car made by the Italian company Lancia
* [[Enfield Cables Ltd]], a cable manufacturer
==Entertainment and fiction==
* [[Delta (album)]], a 2007 studio album by Delta Goodrem
* [[Delta-S]], an industrial band from Camarillo, California
* [[Delta (computer game)]], a 1987 horizontally-scrolling shooter computer game
* [[Delta (TV series)]], a 1992 TV series starring Delta Burke
* [[Delta Halo]], Halo Installation #5 in the Halo Universe
* [[Delta FM]], a UK radio station
* [[Delta Quadrant]], a quadrant of the Milky Way Galaxy depicted in ''Star Trek''
* [[Delta Squad]], the player's team in Star Wars: Republic Commando
* Delta, a codename used by [[Jason Bourne]] in the fiction series ''The Bourne Identity''
* E-103 Delta, a robot in [[E-Series (Sonic the Hedgehog)]]
* ''[[R·Type Delta]]'', the fourth R-Type game in the series
* [[EX Delta Species]], a Pokémon Trading Card Game expansion
* [[Delta Flyer]], a shuttle craft in the Star Trek TV series Voyager
* [[Kamen Rider Delta]], a Kamen Rider that appeared in the Japanese TV series ''Kamen Rider 555''
* [[Space Patrol Delta]], a fictional organization from the ''Power Rangers'' universe
* The Delta Megazord (shaped like a capital Δ) is a zord in [[Power Rangers in Space]]
==Miscellanea==
* [[Delta wave]]s, a low level EEG reading associated with sleep
* [[Delta Works]], a flood-protection works in the Netherlands
* A form of [[tricycle]] having two wheels in back and one wheel in front
* The refractory section in the roof of an [[electric arc furnace]] (EAF) through which one or more electrodes enter
* ''Delta'', a quadra group used in [[Socionics#Quadras|socionics]]
{{disambig}}
[[bs:Delta (čvor)]]
[[bg:Делта (пояснение)]]
[[cs:Delta]]
[[cy:Delta]]
[[da:Delta]]
[[de:Delta (Begriffsklärung)]]
[[es:Delta]]
[[eo:Delto]]
[[ext:Delta (desambiguáncia)]]
[[eu:Delta]]
[[fr:Delta (homonymie)]]
[[gl:Delta]]
[[ko:델타]]
[[hr:Delta (razdvojba)]]
[[it:Delta]]
[[he:דלתא (פירושונים)]]
[[ku:Delta]]
[[lv:Delta]]
[[lt:Delta (reikšmės)]]
[[nl:Delta]]
[[ja:デルタ]]
[[no:Delta]]
[[pl:Delta (ujednoznacznienie)]]
[[pt:Delta (desambiguação)]]
[[ru:Дельта]]
[[sk:Delta]]
[[fi:Delta (täsmennyssivu)]]
[[sv:Delta (olika betydelser)]]
[[uk:Дельта]]
[[vo:Delta]]