| FFU | femur-fibula-ulna [syndrome]; focal forming unit |
|---|---|
| uln | ulna, ulnar |
| OTU | olfactory tubercle; operational taxonomic unit |
| TB | Taussig-Bind [syndrome]; terabyte; term birth; terminal bronchiole; terminal bronchus; thromboxane B... |
| Tb | Tbilisi [phage]; terbium; tubercle bacillus; tuberculosis |