GSM (disambiguation)

GSM is an abbreviation for:

Flyglobespan, former British airline after the IATA code
Gamma -secretase modulator, group of medicines
Gay Skinhead Movement, grouping of gay skinheads
Society for the Protection of Marine Mammals eV
Glass Sport Motors, a former automobile and engine manufacturers in Cape Town, South Africa
DC machine
Tamping machine, machine for machine tamping gravel tracks
Global System for Mobile Communications, mobile radio standard
Groupe Spécial Mobile, Technical Committee of ETSI

Gsm stands for:

Grams per square meter, English for grams per square meter (g / m² ), unit of mass per unit area