| Tm | thulium; tubular maximum excretory capacity of kidneys |
|---|---|
| Tm | melting temperature; temperature midpoint; tubular maximum excretory capacity of kidneys |
| TMPAH | maximum tubular excretory capacity for para-aminohippuric acid |
| XC, Xc | excretory cystogram |
| XU | excretory urogram; X unit |