| EU | Ehrlich unit; elementary unit; emergency unit; endotoxin unit; entropy unit; enzyme unit; esterase u... |
|---|---|
| CU | cardiac unit; casein unit; cause unknown or undetermined; chymotrypsin unit; clinical unit; color un... |
| CTU | cardiac-thoracic unit; centigrade thermal unit; constitutive transcription unit |
| B.T.U. | British Thermal Unit |
| BThU | British thermal unit |