There are multiple definitions:
occipitoanterior position(English)
operational amplifier(English)
- aka "opamp"
- CMRR, Vcm
- Electrophysiology, Biophysics
ocular artifact(English)
osteoarthritis(English)
- a common “wear and tear” disease
- DJD, ACL, GRF, HBM, THA, OAKHQOL, LISOH
- Aging, Gerontology/Geriatrics, Musculoskeletal system, Pain
- https://www.aap…e-joint-disease
- https://www.art…/osteoarthritis
occupational asthma(English)
- recognized as the most prevalent work-related lung diseases in the industrialized world
- WRA, WEA, PEF, SIC, NWRA, AEC, NK2R, SNP, TDI, VEGF
- Pulmonology, Occupational disease, Asthma
- https://doi.org…2889-016-3824-0
- https://doi.org…22.2006.02547.x
open access(English)
orbital atherectomy(English)
- bi-directional orbiting crown using centrifugal force to differentially sand inelastic fibro-calcific plaque while deflecting away from adjacent elastic tissue
- CAC, CAD, IVL, IVUS, OCT, PCI, RA, SCB, NCB
- Vascular disease, Therapeutic approaches, Atherosclerosis /atherogenic, Coronary circulation
- https://doi.org…480040221089760
oral appliance(English)
- a therapy that is a promising alternative to continuous positive airway pressure for patients with obstructive sleep apnea. By holding the mandible in a forward position, an OA keeps the airway open and prevents collapse. The recently revised practice parameters of the AASM extend the indications for OA therapy, recommending that “sleep physicians consider prescription of an OA for adult patients with OSA who are intolerant of CPAP therapy or prefer alternative therapy.” Overall success rate of OA therapy is lower than that of CPAP. New tools such as drug-induced sleep endoscopy and single-night polysomnographic OA titration have been developed. Other factors to consider when determining the indications for OA include the patient’s oral health, evidence of inadequate treatment for older populations, and the risk of long-term dentofacial side effects
- AASM, CPAP, OSA, MIF, UA
- Sleep medicine, Dentistry
- https://doi.org…1606-017-0013-8
obstructive azoospermia(English)
- the condition of complete absence of sperm in the ejaculate. In infertile males, approximately 15% display azoospermia
- Andrology
- https://doi.org…01238-3.64778-5
organic aerosol(English)
oleic acid(English)
- ITT, KAP, KO, LAMP1, LD, LRP2, MAT, MS, mTOR, NEFA, OCT, PAS, PFA, PTEC, RAS, RUBCN, SAT, SFC, TFEB, TG, TUNEL, UN, UVRAG, VPS, WAT, CCK, CD36, ENaC, FAT, FCI, FFA, FFQ, FNS, FPD, GCCR, gLMS, GPCR, GPR120, ORN, SAFA
- Nutrition, Gustatory system
- https://doi.org…27.2020.1712107
- https://doi.org…srev.00061.2021
optimum angle(English)
- refers to maximal voluntary contraction
- ECC, MVC
- Exercise & Training
- https://doi.org…b013e3181c0a818
older adults(English)
- maximize the use of multiple sources of information in comparison to younger adults
- MSI, YA
- Aging, Brain (dys)function, Neurology
- https://doi.org…nagi.2017.00080
open arm(English)
- may refer to an elevated plus-maze induced Fos expression in several brain areas of the anxiety/fear circuitry. Divergent anxiety-related behavioral response to certain exposures is associated with differential neuronal activation in restricted parts of the anxiety/fear circuitry
- HAB, LAB, OF
- Anxiety/fear, Brain (dys)function, Experimental animal
- https://doi.org…ych.2003.10.021
occiput anterior(Latin)
- refers to ultrasound-diagnosed malposition
- OP, OT
- Obstetrics, Pregnancy, Ultrasound
- https://doi.org…gmf.2021.100346
opening angle(English)
- refers to anatomic valve opening and leaflet morphology in aortic valve bioprosthesis
- AVA, AVR, CT, EOA, TTE
- Cardiology, Prosthetics, Anatomy
- https://doi.org…diol.0000082294