shows only definitions for information technology (show 76 definitions) CRB stands for: catheter-related bacteremia | Congenital retinal blindness| | Curriculum Review Board Confusion Note: We have 199 other definitions of CRB in our acronym Attic CRAX – CRAY – CRAYQ – CRAZ – CRAZY – CRB (CBER) – CRB/ M – CRBA – CRBB – CRBBB.