| RE | respiratory exchange ratio |
|---|---|
| RER | renal excretion rate; respiratory exchange ratio; rough endoplasmic reticulum |
| SSIE | Smithsonian Science Information Exchange |
| TEC | total electron count; total eosinophil count; total exchange capacity; transient erythroblastopenia ... |
| TET | tetracycline; total ejection time; total exchange thyroxine; treadmill exercise test |