| AU | according to custom [Lat. ad usum]; allergenic unit; ngstrom unit; antitoxin unit; arbitrary unit; A... |
|---|---|
| CCU | cardiac care unit; Cherry-Crandall unit; coronary care unit; critical care unit |
| MU | megaunit; mescaline unit; methyluric [acid]; Montevideo unit; motion unsharpness; motor unit; mouse ... |
| PCU | pain control unit; primary care unit; patient care unit; pulmonary care unit |
| RU | radioulnar; rat unit; reading unit; residual urine; resin uptake; resistance unit; retrograde urogra... |