The meaning of the Acronym PBM is...

PBM is

• Perpetual Bad Mood
• Peak Bone Mass

More Meanings For PBM:

• Poskanzer's Portable Bit Map format file
• Planar bitmap graphics (XLib)
• Portable Bit Map
• Partition Boot Manager
• Public BookMark
• Passwords By Mask
• Partition Boot Manager
• Passwords By Mask
• Portable Binary Map
• Portable bitmap image format
• Peanut Butter and Mayonnaise
• Partial Body Morph
• Perpetual Bad Mood
• Peak Bone Mass
• Person Below Me

PBM is also in:

• Electronics
• File Extensions
• Food
• General
• Physiology
• Science Fiction
• Security
• Software