FD or similar may refer to:
Science and technology
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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 of Japan and was introduced in March 1971 with the Canon F-1 camera. It served as the ...
, a standard for connecting a lens to a camera
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Familial dysautonomia, a disorder of the autonomic nervous system
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Fermi–Dirac statistics
Fermi–Dirac statistics (F–D 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 di ...
(F–D statistics), in quantum statistics
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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
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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 have ...
, in Unix and related computer operating systems
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Freedesktop.org (fd.o), an interoperability project
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Functional dependency, a constraint in a relation from a database
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Nissan FD engine, for trucks and buses
Transportation
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Thai AirAsia, IATA airline code FD
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Mazda RX-7 (FD), a car
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FD Phantom, original name for the FH Phantom jet fighter
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Russian locomotive class FD
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Flight director (aeronautics), a flight instrument
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Flying Dutchman (dinghy)
Other uses
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Fidei defensor (Latin, 'Defender of the Faith'), part of the full style of many English/British monarchs
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Fixed deposit
A fixed deposit (FD) is a financial instrument provided by banks or NBFCs which provides investors a higher rate of interest than a regular savings account, until the given maturity date. It may or may not require the creation of a separate accou ...
, a financial instrument
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Finance Director, or chief financial officer, in a company
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Fire Department
A fire department (American English) or fire brigade (Commonwealth English), also known as a fire authority, fire district, fire and rescue, or fire service in some areas, is an organization that provides fire prevention and fire suppression se ...
, providing firefighting services
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Force of the Right (''Forța Dreptei''), a Romanian political party
See also
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Floppy disk drive (FDD) in early computers
{{Disambiguation