There are multiple definitions:

1. obtuse marginal [coronary artery branch](English)

   • see circumflex artery
   • pRCA, LIMA, SVG, CABG, iBCIS-JS, LAD, LCX, LM, PDA, LCXd, LCXp, FFR, ICA, PCI, QFR, RPDA
   • Coronary circulation, Medical imaging, Anatomy
   • https://doi.org…iii.2023.11.001

2. Openbaar Ministerie(Dutch)

   • Organizations (governmental), Legal issues

3. outer membrane(English)

   • a highly organized structure with an asymmetrical lipid bilayer with several important functions: acts as a permeability barrier to solutes, hinders the entry of some antibiotics and protects the cell wall peptidoglycan from lysozyme, which can degrade peptidoglycan, leading to cell lysis
   • SEM
   • Bacteriology, Microscopy
   • https://doi.org…97169-2.00002-0

4. otitis media(English)

   • NT, PCR
   • ENT, Bacteriology
   • https://doi.org….3551-3556.2002

5. oatmeal(English)

   • DSNF, FFA, GLP-1, PP, TG, DSF
   • Nutrition, Diabetes, Guidelines
   • https://doi.org….3390/nu8070443

6. ophthalmoplegic migraine(English)

   • possibly caused by ischemic reversible breakdown of the blood–nerve barrier due to vasospasm during the attack
   • CM
   • Headache
   • https://doi.org…00901-7.00006-9

7. osteogenic medium(English)

   • APOE, AVC, AVCAPIR, CAV, CAVD, CD36, DEG, FTO, HCD, hVIC, LDL, m6A, MeRIP-seq, METTL3, PCSK9, piRNA, PIWI, PIWIL1, qPCR, RIP, RT
   • Culture medium, Cardiology, Cell biology
   • https://doi.org…NAHA.123.065213

8. omecamtiv mecarbil(English)

   • a small molecule targeting myosin, and increases contractility in patients with HFrEF while improving clinical outcomes
   • 3D, DCM, EHT, GDMT, HCM, HF, HFpEF, HFrEF, iCM, LSFM, SRX
   • Cardiology, Therapeutic approaches
   • https://doi.org…bts.2023.07.013