The meaning of the Acronym LB is...

LB is

• Lighted Buoy
• Land Biplane
• Low Barrier
• Loose Bearings

More Meanings For LB:

• Long Base
• Liimii Bug
• Leaky Box
• Low Bias
• Light Bandwidth
• Loss Block
• Line Broadening
• Laser Box
• Laser Beam
• Low Barrier
• Lower Bound
• Lower Bounds
• Log Base
• Pound
• Lightning Bolt

LB is also in:

• Astronomy
• Botany
• Electronics
• Mathematics
• Meteorology
• Physics