FD or similar may refer to:

Science and technology

Canon FD lens mount The Canon FD lens mount is a physical standard for connecting a photographic lens to a 35mm single-lens reflex camera body. The standard was developed by Canon (company), Canon of Japan and was introduced in March 1971 with the Canon F-1 camera. ...

, a standard for connecting a lens to a camera *

Familial dysautonomia Familial dysautonomia (FD), also known as Riley–Day syndrome, is a rare, progressive, recessive genetic disorder of the autonomic nervous system that affects the development and survival of sensory, sympathetic, and some parasympathetic neuro ...

, a disorder of the autonomic nervous system *

Fermi–Dirac statistics Fermi–Dirac statistics is a type of quantum statistics that applies to the physics of a system consisting of many non-interacting, identical particles that obey the Pauli exclusion principle. A result is the Fermi–Dirac distribution of part ...

(F–D statistics), in quantum statistics *

Ferredoxin Ferredoxins (from Latin ''ferrum'': iron + redox, often abbreviated "fd") are iron–sulfur proteins that mediate electron transfer in a range of metabolic reactions. The term "ferredoxin" was coined by D.C. Wharton of the DuPont Co. and applied t ...

, iron–sulfur proteins *

File descriptor In Unix and Unix-like computer operating systems, a file descriptor (FD, less frequently fildes) is a process-unique identifier (handle) for a file or other input/output resource, such as a pipe or network socket. File descriptors typically h ...

, in Unix and related computer operating systems *

Freedesktop.org freedesktop.org (fd.o), formerly X Desktop Group (XDG), is a project to work on interoperability and shared base technology for free-software desktop environments for the X Window System (X11) and Wayland on Linux and other Unix-like operatin ...

(fd.o), an interoperability project *

Functional dependency In relational database theory, a functional dependency is the following constraint between two attribute sets in a relation: Given a relation ''R'' and attribute sets ''X'',''Y'' \subseteq ''R'', ''X'' is said to functionally determine ''Y'' (wr ...

, a constraint in a relation from a database *

Nissan FD engine The Nissan FD engine is used primarily for Nissan Truck and Bus commercial vehicles. It is of an inline-four layout.Nissan Atlas model H40-H41 Series Workshop Manual The FD is a direct injection development of the earlier, swirl chamber ED engin ...

, for trucks and buses

Transportation

Thai AirAsia Thai AirAsia (, ) is a Thai low-cost airline. It is a joint venture of Malaysian AirAsia () and Thailand's Asia Aviation. It serves AirAsia's regularly scheduled domestic and international flights from Bangkok and other cities in Thailand. H ...

, IATA airline code FD *

Mazda RX-7 (FD) The Mazda RX-7 is a front mid engine, rear-wheel-drive, rotary engine-powered sports car, manufactured and marketed by Mazda from 1978 through 2002 across three generations, all of which incorporated the use of a compact, lightweight Wankel ro ...

, a car *

FD Phantom The McDonnell FH Phantom is a twinjet, straight-wing, carrier-based fighter aircraft designed and first flown during late World War II for the United States Navy. As a first-generation jet fighter, the Phantom was the first purely jet-powered ...

, original name for the FH Phantom jet fighter *

Russian locomotive class FD The Soviet locomotive class FD (; ) was a Soviet main freight steam locomotive type named after Felix Dzerzhinsky (; ). Between 1932 and 1942, 3,213 FD series locomotives were built. History The locomotive was created in connection with the ind ...

Flight director (aeronautics) In aviation, a flight director (FD) is a flight instrument that is overlaid on the attitude indicator that shows the aviator, pilot of an aircraft the attitude required to execute the desired flight path. Flight directors are mostly commonly used d ...

, a flight instrument *

Flying Dutchman (dinghy) The Flying Dutchman is a Dutch Planing (boat), planing sailing dinghy that was designed by Uus Van Essen and Conrad Gülcher as a high performance, one design Sailing (sport), racer and first built in 1951. The boat was an Olympic sailing clas ...

Other uses

Formula Drift Formula DRIFT (also known as Formula D or FD) is an American drifting series, and was co-founded by Jim Liaw and Ryan Sage in 2003 as a sister company to Slipstream Global Marketing, the same partnership that introduced D1 Grand Prix to the ...

, an American motorsport series *

Fidei defensor Defender of the Faith ( or, specifically feminine, '; ) is a phrase used as part of the full Royal and noble styles, style of many English, Scottish and later British monarchs since the early 16th century, as well as by other monarchs and heads of ...

(Latin, 'Defender of the Faith'), part of the full style of many English/British monarchs *

Fixed deposit A fixed deposit (FD) is a tenured deposit account provided by banks or non-bank financial institutions which provides investors a higher rate of interest than a regular savings account, until the given maturity date. It may or may not require th ...

, a financial instrument *

Finance Director A chief financial officer (CFO) is an officer of a company or organization who is assigned the primary responsibility for making decisions for the company for projects and its finances; i.a.: financial planning, management of financial risks, ...

, or chief financial officer, in a company *

Fire Department A fire department (North American English) or fire brigade (English in the Commonwealth of Nations, Commonwealth English), also known as a fire company, fire authority, fire district, fire and rescue, or fire service in some areas, is an organi ...

, providing firefighting services *

Force of the Right Force of the Right (, FD), sometimes translated as Right's Force or Right Force, is a liberal-conservative political party in Romania founded in December 2021 by Ludovic Orban, former National Liberal Party (PNL) president and former prime minis ...

(''Forța Dreptei''), a Romanian political party *Financial Dynamics, a UK business services and lobbying firm acquired by

FTI Consulting FTI Consulting (earlier Forensics Technologies International) is a business consultancy firm founded in 1982 and headquartered in Washington, D.C., United States. The company specializes in corporate finance and restructuring, economic consultin ...

in 2006

Science and technology

Transportation

Other uses

See also