There are multiple definitions:

1. magnetically shielded room(English)

   • MMG, SARA
   • Magnetism

2. maagsapresistent tablet(Dutch)

   • Therapeutic approaches

3. mesoporous silica rod(English)

   • a vaccine platform
   • Vaccination
   • https://doi.org…/adhm.202101370

4. minimalist-shoe rear-foot [striker](English)

   • runners often cannot report their foot-strike patterns accurately and may not automatically adopt an anterior-foot-strike pattern after transitioning to minimalist running shoes
   • FFS, hFF, hRF, MSA, TSR
   • Musculoskeletal system, Exercise & Training
   • https://doi.org…62-6050.49.6.06

5. molten salt reactor(English)

   • a thorium-based reactor for carbon-free nuclear energy
   • ORNL
   • Energy transition
   • https://www.orn…en-salt-reactor