Mathematics •
Set (mathematics), a collection of elements •
Category of sets, the category whose objects and morphisms are sets and total functions, respectively
Electronics and computing •
Set (abstract data type), a data type in computer science that is a collection of distinct values •
Set (C++), a set implementation in the C++ Standard Library •
Set (command), a command for setting values of environment variables in Unix and Microsoft operating-systems •
Secure Electronic Transaction, a standard protocol for securing credit card transactions over insecure networks •
Single-electron transistor, a device to amplify currents in nanoelectronics •
Single-ended triode, a type of electronic amplifier •
Set!, a programming syntax in the scheme programming language
Biology and psychology •
Set (psychology), a set of expectations which shapes perception or thought • Set or
sett, a badger's den • Set, a small tuber or bulb used instead of seed, especially: •
Potato set •
Onion set •
SET (gene), gene for a human protein involved in apoptosis, transcription and nucleosome assembly • Single
Embryo Transfer, used in
in vitro fertilization
Physics and chemistry • A chemical change in an
adhesive from unbonded to bonded • Set, to make/become solid; see
Solidification •
Stress–energy tensor, a physical quantity in the theory of fields •
Single electron transfer Other uses in science and technology •
Saw set, the process of setting the teeth of a saw so each tooth protrudes to the side of the blade •
Scalar expectancy theory, a model of the processes that govern behavior controlled by time • Science, Engineering & Technology, e.g.
The Science, Engineering & Technology Student of the Year Awards •
Setting (typesetting), the act of typesetting a publication for print or display •
Simulated Emergency Test, an amateur radio training exercise • Software Engineer in Test, a
quality assurance job title in some software companies •
Strategic Energy Technologies Plan of the European Union •
Suzuki SET, Suzuki Exhaust Tuning of motorcycles •
Set Catena, a pit chain on Neptune's largest moon Triton ==Arts and entertainment==