FD

protein-coding gene

FD or similar may refer to: ==Biology== Familial dysautonomia, a disorder of the autonomic nervous system Ferredoxin, iron–sulfur proteins ==Computing== File descriptor, in Unix and related computer operating systems Freedesktop.org (fd.o), an interoperability project Functional dependency, a constraint in a relation from a database ==Transportation== ===Automotive=== Mazda RX-7 (FD), a car Nissan FD engine, for trucks and buses Formula Drift, an American motorsport series ===Aviation=== Thai AirAsia, IATA airline code FD FD Phantom, original name for the FH Phantom jet fighter Flight director (aeronautics), a flight instrument ===Other modes of transportation=== Russian locomotive class FD Flying Dutchman (dinghy) ==Business and politics== Fixed deposit, a financial instrument Finance Director, or chief financial officer, in a company Financial Dynamics, a UK business services and lobbying firm acquired by FTI Consulting in 2006 Force of the Right (Forța Dreptei), a Romanian political party Fidei defensor (Latin, 'Defender of the Faith'), part of the full style of many English/British monarchs ==Other uses== Fire Department, providing firefighting services Canon FD lens mount, a standard for connecting a lens to a camera Fermi–Dirac statistics (F–D statistics), in quantum statistics ==See also== Floppy disk drive (FDD) in early computers

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