SDF

SDF may refer to:

Computing[edit]

File formats[edit]

Simple Data Format, for binary data
Spatial Data File, for geodatabases
Standard Delay Format, for timing data
SQL Server Compact Edition Database File (filename extension: .sdf)
Structure data file, for chemical tables
Scientific Data Format, a Hierarchical Data Format implementation

Formal computer science[edit]

Signed distance function (or field), in mathematical applications
Syntax Definition Formalism, to describe formal languages

Other uses in computing[edit]

Software development folder, a physical or virtual container for software project artifacts
Synchronous Data Flow, a restriction of Kahn process networks
SDF Public Access Unix System, a shared shell provider

Entertainment and media[edit]

Südtirol Digital Fernsehen, a TV station in South Tyrol, Italy
Super Dimensional Fortress, warships in the Robotech/Macross franchise
Settlement Defense Front (SDF), a enemy faction of Call of Duty: Infinite Warfare

Organizations[edit]

Places[edit]

Louisville International Airport, Kentucky, US (by IATA code)
Soquel Demonstration State Forest, California, US

Science[edit]

Silver diammine fluoride, in dentistry
Stromal cell-derived factor (disambiguation), SDF1, SDF1a, etc.
Subwavelength-diameter optical fibre
Synchronous diaphragmatic flutter or hiccup

Other uses[edit]

SDF Group (SAME Deutz-Fahr), an Italian-based agricultural machine manufacturer
Simplified directional facility, an aviation instrument approach navigational aid
Stochastic discount factor, in econometrics

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