| TU | thiouracil; thyroid uptake; Todd unit; toxin unit; transmission unit; transurethral; tuberculin unit... |
|---|---|
| at vol | atomic volume |
| vol | volar; volatile; volume; voluntary, volunteer |
| 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 |