| LSO | lateral superior olive; left salpingo-oophorectomy; left superior oblique; lumbosacral orthosis |
|---|---|
| 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 |
| TBA | tertiary butylacetate; testosterone-binding affinity; tetrabutylammonium; thiobarbituric acid; to be... |