There are multiple definitions:

1. Medication Administration Record(English)

2. missing at random(English)

   • a likelihood-based method in statistics
   • BP, LOCF, MCAR, MNAR, MI, MI-B, MI-BP, MM, mRS, WCI
   • Statistics, Model(ing)
   • https://doi.org…2874-017-0442-1

3. matrix attached region(English)

4. minimum angle of resolution(English)

   • refers to visual acuity
   • logMAR
   • Ophthalmology
   • https://dbpedia…ge/LogMAR_chart

5. melanoma-associated retinopathy(English)

   • CAR, AARON, AIR, ARA, ERG, GEDi-R, IRD, MEEI, OCT, RPE
   • Ophthalmology, Oncology, Pathology
   • https://doi.org…joc.2019.100461

6. metal artifact reduction(English)

   • metallic implants appear as dark and bright streaks at computed tomography, which severely degrade the image quality and decrease the diagnostic value of the examination. Algorithms act in projection space and replace corrupted projections caused by metal with interpolation from neighboring uncorrupted projections
   • CT, DECT
   • Medical imaging, Signal analysis
   • https://doi.org…8/rg.2018170102

7. maximum platelet aggregation ratio(English)

   • MAR-AA, MAR-ADP, ADP, CVA, LOF, CHANCE, TIA
   • Ratio-based metric, Pharmacology / pharmaceutics
   • https://doi.org/10.5414/CP202911

8. muscarinic acetylcholine receptor(English)

   • CFS, ME, PACS, TPO, ß2AR
   • Receptors, Chronic fatigue syndrome
   • https://doi.org…063-024-07982-5