The meaning of the Acronym IRB is...

IRB is

• International Republican Brotherhood

More Meanings For IRB:

• I Ref Badly
• International Rubbish Bullshit
• Industrial Radiation Burns
• Independent Reading Books
• Inshore Rescue Boat
• A Integrated Research Board
• Infra Red Blocking
• Institutional Review Board (approves research protocols at hospitals)
• Internal Revenue Bulletin
• Internal Ratings Based
• Institutional Review Board
• Investigational Review Board
• Institutional Review Board
• Improved Ribbon Bridge
• Incident Report Book

IRB is also in:

• Accounting
• Adults
• Chat
• FDA
• General
• Military
• Physiology
• Police
• Unfiled