There are multiple definitions:

1. mentoposterior position(English)

   • Obstetrics

2. matching pursuit(English)

   • EM

3. mitral prosthesis(English)

   • SR
   • Cardiology

4. menstrual period(English)

   • Gynecology

5. multiphoton(English)

   • Biophysics

6. Marchenko-Pastur(English)

   • a distribution fitting approach
   • Statistics

7. mid-periphery(English)

   • refers to surface features of corneal epithelial cells
   • SEM, CD
   • Ophthalmology, Veterinary medicine
   • https://doi.org…24.2008.00604.x

8. myofascial pain(English)

   • a soft tissue pain syndrome (STP) with local and referred pain arising from trigger points (TrPs). Local STPs include bursitis, tenosynovitis, and enthesopathies
   • FMS, MPS, STP, TrP
   • Pain, Physical therapy
   • https://doi.org…40196-8.00025-5

9. middle phalanx(English)

   • Anatomy
   • https://doi.org…-4024-6.00049-6

10. metacarpophalangeal [joint](English)

    • joint arthroplasty is the most commonly performed and successful joint replacement surgical procedure of the hand
    • Surgery
    • https://doi.org…03370-1.50019-8

11. mean power [output](English)

    • EMG, MMG, MP, MPF, PT, RF, VL
    • Physiology
    • https://doi.org…0421-004-1199-x

12. minipool(English)

    • refers to nucleic acid testing
    • HBc, HBsAg, HBV, ID, JRC, NAT
    • Hematology, Screening
    • https://doi.org…95.2007.01276.x

13. myocardial perfusion(English)

    • CFR
    • Coronary circulation, Cardiology
    • https://doi.org…yon.2022.e10872

14. multiplanar [weightbearing](English)

    • AAFD, WB
    • Skeleton and bone (formation), Biophysics
    • https://doi.org…071100716646629

15. multiparametric(English)

    • MP-MRI, TACE, ADC, BCLC, DWI, HCC
    • Statistics, Model(ing), Medical imaging
    • https://doi.org…1002/jmri.27143

16. microplastic(English)

    • DFI, WWFZYJ
    • Environment, Pollution and health
    • https://doi.org…000000000031265

17. maximal protrusive [movement](English)

    • ADP, ML, MRI
    • Dentistry
    • https://doi.org…jom.2003.10.005

18. muscularis propria(Latin)

    • RC, UC
    • Oncology, Urology
    • https://doi.org…b013e318222a653

19. mid-palm(English)

    • CTS, DML, DSL
    • Neuropathy, Rheumatology, Pain, Electrophysiology
    • https://doi.org…matology/keh571

20. Meyerson phenomenon(English)

    • consists of an eczematous reaction occurring around a pre-existing dermatologic lesion that is usually melanocytic and generally benign
    • SP
    • Dermatology
    • https://doi.org…der.2011.10.413