SLS

The initialism SLS can mean several things:

Selective laser sintering a 3D printing rapid prototyping process.
Swiss Light Source The Swiss synchrotron, located at the Paul Scherrer Institut.
Serviceability limit State, see also limit state design
Signaling Link Selection or Signalling Link Selection, routing label and field of the MTP2 frame in MTP,
Slovenska ljudska stranka, Slovenian for the Slovene People's Party
Sodium lauryl sulfate, another name for sodium dodecyl sulfate (SDS).
Softlanding Linux System, said to be the first comprehensive Linux distribution, i.e. containing more than the Linux Kernel and basic utilities.
StarLight Scopes or Image intensifier, tubes used for night-vision.
St. Louis School, a Catholic primary and secondary school run along the lines of an English grammar school, located in Hong Kong.
Shawnigan Lake School, a private secondary school run along the lines of an English grammar school, located in Shawnigan Lake.
Same Language Subtitle, a technique used to promote literacy through the use of subtitles.