- magnetic relaxation
- magnetic substance
- magnetic transducer
- magnetization intensity
- magnetocaloric effect
- magnetoelastic effect
- magnetoelectric machine
- magnetogram
- magnetohydrodynamic wave
- magnetoresistor
- magnetosonic wave
- magnetostatic equilibrium
- magnetostrictive
- magnetostrictive generator
- magnettomechanical effect
- magnitooptics
- main
- main duct
- main frame
- main scale
- maintenance hangar
- major
- majority function
- making capacity
- malalignment
- magnetic diffusivity
- magnetic fluxmeter
- magnetic metal
- magnetic octupole
- magnetic permeability
- magnetic refrigerator
- magnetic reluctance
- magnetic scattering
- magnetic separator
- magnetic star
- magnetization curve
- magnetized
- magnetoacoustic effect
- magnetoelectric effect
- magnetometer
- magnetometry
- magnetostatic shielding
- magnetostrictive microphone
- magnon
- Magoules number
- main lobe
- mainframe
- maintained temperature
- man cooling
- Manchester plate
- major lobe
- major tone
- Majorana effect
- malleable
- manometric balance
- manual damper
- manipulator
- manual adjuster
- manual manipulation
- mareograph
- marginal ray
- marine boiler
- mass memory
- mass number
- mass spectrograph
- mass spectrum
- mass-spectroscopy
- Massieu function
- manual defrosting
- many-valued
- marginal relay
- marine refrigeration
- marker strip
- marking current
- marking wave
- material medium
- material particle
- mathematical formalism
- mathematical fractals
- mathematical manipulation
- mathematically deterministic
- matrix calculus
- matrix diagonalization
- matter wave
- maximum demand
- maximum permeability
- maximum range
- Maxwell-turn
- maxwellmeter
- mbps
- meaconing
- mean sun
- mean time
- mean-square
- measurement technique
- measurement transducer
- mass analyser
- mass consumption
- mass defect
- mass excess