| EOA | effective orifice area; erosive osteoarthritis; esophageal obturator airway; examination, opinion, a... |
|---|---|
| OI | obturator internus; occasional insomnia; opportunistic infection; opsonic index; orgasmic impairment... |
| 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 |