The meaning of the Acronym SDB is...

SDB is

• Spacecraft Data Base
• Shallow Draft Board
• Shallow Draft Barge

More Meanings For SDB:

• symbolic debugger
• Salesian Of Don Bosco
• Systems Development Branch
• Standard Dwarf Bearded
• System Defense Boats
• Sheets Data Base
• Small Diameter Bomb
• The Schools Digital Books
• A Scuba Diving Bulls
• Seventh Day Baptists
• Soaring Dotted Blumaroo
• Sleep Disordered Breathing
• Society for Developmental Biology
• Safe Deposit Box
• Systems Design Board

SDB is also in:

• Accounting
• Chat
• Military
• Ocean Science
• Physiology
• Unfiled
• Unix Commands
• Veterinary