The meaning of the Acronym GBM is...

GBM is

• Great Big Maps

More Meanings For GBM:

• Generate Business Money
• General Body Meeting
• Greenwich Borough Mariners
• Great Big Maps
• GlioBlastoma Multiforme
• Glomerular Basement Membrane
• Garbaharey, Somalia

GBM is also in:

• Airport Codes
• General
• Military
• Oncology
• Physiology
• Sports