SP3 may refer to:
* sp
3 hybrids, a type of
orbital hybridisation
In chemistry, orbital hybridisation (or hybridization) is the concept of mixing atomic orbitals to form new ''hybrid orbitals'' (with different energies, shapes, etc., than the component atomic orbitals) suitable for the pairing of electrons to f ...
*
Sp3 transcription factor
Sp3 transcription factor, also known as SP3, refers to both a protein and the gene it is encoded by.
This gene belongs to a family of Sp1 related genes that encode transcription factors that regulate transcription by binding to consensus GC- and ...
, a protein and the gene which encodes it
*
Savoia-Pomilio SP.3
The Savoia-Pomilio SP.3 was a reconnaissance and bomber aircraft built in Italy during the First World War.Taylor 1989, p.793
Development
The SP.3 was a further development of the family of designs that had started with the SP.1. Ultimately al ...
, a reconnaissance and bomber aircraft built in Italy
* , an armed motorboat
* 1971 SP3 or
3922 Heather, a main-belt asteroid discovered on September 26, 1971
* 1984 SP3 or
3155 Lee, a main-belt asteroid discovered on September 28, 1984
* SP3,
a model of steam toy made by British manufacturer Mamod
*
Service pack 3
In computing, a service pack comprises a collection of updates, fixes, or enhancements to a software program delivered in the form of a single installable package. Companies often release a service pack when the number of individual patches to a ...
, for computer software
*
Socket SP3
Socket SP3 is a zero insertion force land grid array CPU socket designed by AMD supporting its Zen-, Zen 2- and Zen 3-based Epyc server processors, launched on June 20, 2017. Because the socket is the same size as Socket TR4, and Socket sTRX4 ...
, a CPU socket for AMD processors
* SP3, a sink in the
Sima Pumacocha
Sima Pumacocha (possibly from Spanish ''sima'' deep and dark cavern/abyss, Quechua ''puma'' cougar, puma, ''qucha'' lake) is a limestone cave located in the Lima Region, Yauyos Province, Laraos District, in central Peru near the village of Laraos ...
, a cave in Peru
*
Surface Pro 3
The Surface Pro 3 is the third-generation Surface-series 2-in-1 detachable, designed, developed, marketed, and produced by Microsoft. It originally ran the Windows 8.1 Pro operating system (OS), but the optional upgrade to Windows 10 Pro (OS) op ...
, a 2-in-1 personal computer by Microsoft
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