| occ | occasional; occiput, occipital; occlusion; occlusive; occupation; occurrence |
|---|---|
| occup | occupation, occupational |
| MTD | maximum tolerated dose; mean total dose; metastatic trophoblastic disease; Midwife Teacher's Diploma... |
| TIC | Toxicology Information Center; trypsin inhibitory capability; tubulointerstitial cell; tumor-inducin... |
| TTD | temporary total disability; tissue tolerance dose; transient tic disorder; transverse thoracic diame... |