1) Laws simulation model 2) Naval invasion craft 
In biology, LSm proteins are a family of RNA-binding proteins found in virtually every cellular organism. LSm is a contraction of `like Sm`, because the first identified members of the LSm protein family were the Sm proteins. LSm proteins are defined by a characteristic three-dimensional structure and their assembly into rings of six or seven in.....
Life-Support Module. Small semi-automatic device in the shape of a cylinder, one end of which contains medical analyzers, and the other contains medicine injectors.
acronym: LAWS Simulation Model
Linux Security Module. a security framework for providing different security levels.
a type of military landing ship slightly more than 200 ft. (60 m) long.