| PTAT | pure tone average threshold |
|---|---|
| RDT | retinal damage threshold; routine dialysis therapy |
| SWT | sine-wave threshold |
| TE | echo-time; expiratory time; tennis elbow; test ear; tetanus; tetracycline; threshold energy; thrombo... |
| TED | Tasks of Emotional Development; threshold erythema dose; thromboembolic disease |