There are multiple definitions:

1. opto-electronic(s)(English)

   • the study and application of electronic devices and systems that source, detect and control light, usually considered a subfield of photonics; aka optronics
   • Optics and vision, Biophysics
   • https://www.oe.phy.cam.ac.uk/

2. overexpression(English)

   • BACH1, GWAS, KDA, LDLR, MAFF, CCL2, CD144, EC, EDN1, EdU, EMCN, ENG, E2F, FLT1, HTN, HUVEC, INHBA, IL-1B, Pax2, PE, PlGF, VCAM-1, VEGFA, VSVG, VWF
   • Genetics, Genomics
   • https://doi.org…NAHA.120.050186
   • https://doi.org…SAHA.124.324606

3. olfactory epithelium(English)

   • ACE2, COVID-19, EBG, OC, OF, OR, OS, OSN, SUS
   • Olfactory system
   • https://doi.org/10.1002/lio2.135
   • https://doi.org…emneuro.0c00649

4. outcome expectation(English)

   • may modulate the hypoalgesic effect induced by motor imagery
   • CDT, CG, HPT, HR, MI, PPT, SE, WDT
   • Quality and outcomes, Pain
   • https://doi.org…ijerph191911878

5. oxygen-enhanced(English)

   • CF, MPSE, MRI, PSE, UTE, VDP
   • Oxygen, Medical imaging, Pulmonology
   • https://doi.org…1002/jmri.25877

6. ovarian endometriosis(English)

   • CA-125, CA19-9, D-D
   • Biomarker, Ovary and uterus, Pathology
   • https://doi.org…90.2022.2074534

7. outlier exposure(English)

   • LOF
   • Statistics
   • https://doi.org…OC.2021.3052449