FD or similar may refer to:

Science and technology

* Canon FD lens mount, a standard for connecting a lens to a camera * Familial dysautonomia, a disorder of the autonomic nervous system *

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 *

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 ...

, 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 ...

, in Unix and related computer operating systems * Freedesktop.org (fd.o), an interoperability project *

Functional dependency In relational database theory, a functional dependency is a constraint between two sets of attributes in a relation from a database. In other words, a functional dependency is a constraint between two attributes in a relation. Given a relation '' ...

, 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 a 4 cylinder.Nissan Atlas model H40-H41 Series Workshop Manual FD33 * @ 3600 rpm @ 2000 rpm Nissan Atlas (H40) 1984-1986 FD33T *turbodiesel @ 3600 rp ...

, for trucks and buses

Transportation

* Thai AirAsia, IATA airline code FD *

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

, a car *

FD Phantom The McDonnell FH Phantom is a twinjet fighter aircraft designed and first flown during World War II for the United States Navy. The Phantom was the first purely jet-powered aircraft to land on an American aircraft carrier and the first jet de ...

, original name for the FH Phantom jet fighter * Russian locomotive class FD * Flight director (aeronautics), a flight instrument * Flying Dutchman (dinghy)

Other uses

Fidei defensor Defender of the Faith ( la, Fidei Defensor or, specifically feminine, '; french: Défenseur de la Foi) is a phrase that has been used as part of the full style of many English, Scottish, and later British monarchs since the early 16th century. It ...

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

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 acco ...

, a financial instrument *

Finance Director The chief financial officer (CFO) is an officer of a company or organization that is assigned the primary responsibility for managing the company's finances, including financial planning, management of financial risks, record-keeping, and fina ...

, or chief financial officer, in a company *

Fire Department A fire department (American English American English, sometimes called United States English or U.S. English, is the set of varieties of the English language native to the United States. English is the most widely spoken language in th ...

, providing firefighting services * Force of the Right (''Forța Dreptei''), a Romanian political party

Science and technology

Transportation

Other uses

See also