- RLU
- Relative Light Unit (Miscellaneous » Unit Measures)Relative Light Unit (Medical » Laboratory)* Replacement Lamp Unit (Business » Products)* Remote Line Unit (Computing » Telecom)* Raised- Leg Urination (Medical » Physiology)* Real Life University (Academic & Science » Universities)* Real Life University (Community » Religion)* Really Lousy Utility (Computing » Software)* Red Loop Unit (Computing » Software)* Barite, Alaska USA (Regional » Airport Codes)
Abbreviations dictionary. 2012.