Delta

Delta commonly refers to:

• Delta (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 Air Lines, a major U.S. airline
  • Delta Connection
  • Delta Express
  • Delta Shuttle

Delta may also refer to:

Places

Argentina

• Paraná Delta

Canada

• Delta, British Columbia
  • Delta (provincial electoral district)
  • Delta (electoral district)
• Delta, Ontario, a village within the township of Rideau Lakes, Ontario

Egypt

• Nile Delta

Nigeria

• Delta State
• Niger Delta

People's Republic of China

• Pearl River Delta
• Yangtze River Delta

United States

• Delta, Alabama
• Delta, Colorado
• Delta, Illinois
• Delta, Iowa
• Delta, Kentucky
• Delta, Louisiana
• Delta, Missouri
• Delta, Ohio
• Delta, Pennsylvania
• Delta, Utah
• Delta, Wisconsin, a town
• Delta (community), Wisconsin, an unincorporated community

Education

• DELTA (ELT), a professional qualification in English language teaching
• Delta, a quadra group used in socionics

Entertainment

• Alt-J (∆), British indie band
• Delta (album), a 2007 album by Delta Goodrem
• Delta (Visions of Atlantis album), a 2011 album by symphonic metal band Visions of Atlantis
• "Delta", a song by Crosby, Stills & Nash from Daylight Again
• Delta (DVD)
• Delta (TV series), a 1992 TV series starring Delta Burke
• Delta (video game), a 1987 computer game
• Delta FM or Delta Radio, a former UK radio station
• Delta Machine, thirteenth studio album from Depeche Mode.

Fiction

• Delta, a codename used by Jason Bourne in The Bourne Identity
• E-103 Delta, a robot character in Sonic the Hedgehog
• Delta Megazord, a zord in Power Rangers in Space
• Deltas, the working class of Aldous Huxley's Brave New World
• Delta AI, a supporting character in Red vs. Blue
• Subject Delta, the protagonist of Bioshock 2
• Delta Squad, the main characters in Gears of War

Film

• Delta Pis, sorority in Revenge of the Nerds

Companies

Along with the aforementioned Delta Air Lines, other companies named Delta include:

• Delta (pen manufacturer), a manufacturer of fine writing instruments
• Delta Cafés, a Portuguese coffee roasting and coffee packaging company
• Delta Electric Company, defunct electrical parts company
• Delta Electricity, an Australian power generation company
• Delta Electronics, a power supplies and brushless fans manufacturer
• Delta Faucet Company, a plumbing fixtures company
• Delta Galil Industries, an Israeli textile company
• Delta Holding, a Serbian import-export, banking, insurance and retail corporation
• 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 Motors Corporation, a defunct Filipino auto manufacturer
• Visa Delta or Visa Debit

Organizations

• Delta Dental, an American dental plan system
• Delta Force, a U.S. Army special operations force
• Delta Sigma Theta, an incorporated Howard University public service sorority founded in 1913.
• Delta Works, a flood-protection works in the Netherlands
• Emergency Response Unit (Norway), a Norwegian special police forces team

Science and technology

Computer science

• Delta (computer), a Russian ZX Spectrum clone
• Delta encoding, a technique in computer communications and version-control

Earth sciences

• Delta switching, the process by which some rivers change their course near their deltas
• Tropical Storm Delta (2005), a tropical storm of the 2005 Atlantic hurricane season
• Δ, or epicentral distance

Mathematics

• (ε, δ)-definition of limit
• Delta (finance), a first order derivative of an option pricing formula versus the underlying spot price
• Delta method, a method for approximating the distribution of a function of a random variable
• Δ, or difference operator
• Δ, or modular discriminant
• Δ, or symmetric difference
• Δ, a change of state between two before and after state schemas in the Z notation
• $\Delta^0_n,$ a classification in the arithmetical hierarchy
• $\Delta^1_n,$ a classification in the analytical hierarchy
• $\Delta^P_i,$ a classification in the polynomial hierarchy
• $\nabla$ (the nabla symbol), an inverted delta representing del, a vector differential operator
• Delta connective, a unary connective in t-norm fuzzy logics
• $\delta_{ij}$, the Kronecker delta function
• $\delta(x-y)$, the Dirac delta function

Medicine and biology

• Delta (genus), Old World genus of potter wasps
• Delta (ligand), an activator of the Notch signaling pathway
• DELTA (taxonomy), a data format used in taxonomy for recording descriptions of living things
• Delta wave, the frequency band of brain activity between 1 and 4 hertz
• Delta wave, on an ECG, the slurred upstroke of the QRS complex which is characteristic of Wolff–Parkinson–White syndrome

Physics

• Delta baryon, a subatomic particle with spin 3/2
• High-leg delta, three phase electrical circuit

Vehicles

• Delta (rocket family), a family of launch vehicles
• Delta class submarine, a Soviet/Russian SSBN submarine series (NATO reporting name)
• Delta Formation, an aircraft formation flying manoeuvre in the shape of a V
• Delta wing, an aircraft wing planform in the form of a triangle
• Oldsmobile Delta 88, a full-size General Motors car made from 1965 to 1983
• GM Delta platform, a compact car automobile platform from General Motors
• Lancia Delta, an Italian rally car
• DeltaWing, a prototype of racing car
• Delta, a tricycle layout

Industry

• Delta robot, a specialized type of parallel robot

Other uses

• Delta blues, one of the earliest styles of blues music
• Ilford Delta, a photographic film
• Delta, the refractory section in the roof of an electric arc furnace
• Delta, a font designed by Aldo Novarese

People with the name

• Penelope Delta (1874–1941), Greek author
• Delta Burke (born 1956), American actress
• Delta Goodrem (born 1984), Australian singer
• Delta (wrestler) (born 1985), Mexican professional wrestler

See also

• Delta County (disambiguation)
• Mississippi Delta (disambiguation)
• Arkansas Delta
• All pages with titles containing "Delta"