What does Rib stand for?

Ribose - Also, r - A sugar

Racing Information Bureau - British (CB)

Radioactive Ion Beam (COE)

Railway Information Bureau

Range in a Box (SAUS)

Read Interrupt Buffer (SAUS)

Receiver Interface Board - Navy Navigation Satellite System (DNAB)

Reconvertible Items Breakdown (SAUS)

Recoverable Item Breakdown

Recyclable, Incineratable, Biodegradable - Food packaging

Referee in Bankruptcy (SAUS)

Reflexive Interface Builder - An application and toolkit

Remote Insight Board (TELEC)

Renderman Interface Bytestream (SAUS)

Request Indicator Byte (SAUS)

Research Institute of Brewing (SAUS)

Reservists Instruction Book (SAUS)

Return Information Block - Computer science (TIMI)

Ribbed (AAG)

Ribbon (SAUS)

Riberalta - Bolivia - Airport symbol (OAG)

Right Inboard (MCD)

Right Intermediate Bronchus - Anatomy

Rigid Inflatable Boat (MUSM)

River Ice Breaker (PDAA)

Roanoke Iron & Bridge (SAUS)

- The Roman Inscriptions of Britain - A publication (OCD)

Routing Information Base (SAUS)

Rubberized Inflatable Boat (DOMA)

Rural and Industries Bank of Western Australia - Commercial firm

Rural Industries Bureau