lgm

Initialism of Lady International Correspondence Chess Grandmaster.

Initialism of little green man.

A life-hostile change in the Martian climate may have taken place early enough to arrest the evolution of complex life and, of course, the emergence of LGM,* which means the riverbeds may indeed hold the fossil remains of an extinct primitive biota.

A pulsar designation.

Initialism of last glacial maximum.

Prefix code for a silo-launched surface-attack guided missile.

Initialism of let's go Mets.