China 
Africa 
- Magma
- Magma chambers
- Magmatism
- Magnalium
- Magnesioferrite
- Magnesite
- Magnesium
- Magnesium alloy
- Magnesium bicarbonate
- Magnesium bromide
- Magnesium carbonate
- Magnesium chloride
- Magnesium citrate
- Magnesium deficiency
- Magnesium diboride
- Magnesium fluoride
- Magnesium hydride
- Magnesium hydroxide
- Magnesium nitrate
- Magnesium perchlorate
- Magnesium peroxide
- Magnesium phosphate
- Magnesium silicide
- Magnesium stearate
- Magnesium sulfate
- Magnesium sulfite
- Magnesium transporter
- Magnet therapy
- Magnetic
- Magnetic Reynolds number
- Magnetic alloys
- Magnetic anomaly
- Magnetic bearings
- Magnetic circuit
- Magnetic circular dichroism
- Magnetic confinement fusion
- Magnetic cores
- Magnetic coupling
- Magnetic damping
- Magnetic declination
- Magnetic detectors
- Magnetic diffusion
- Magnetic dipole transition
- Magnetic dipoles
- Magnetic domains
- Magnetic drug delivery
- Magnetic energy
- Magnetic field
- Magnetic field-assisted finishing
- Magnetic fields
- Magnetic flow meter
- Magnetic flux
- Magnetic flux leakage
- Magnetic flux quantum
- Magnetic hysteresis
- Magnetic impurity
- Magnetic isotope effect
- Magnetic lenses
- Magnetic levitation
- Magnetic logic
- Magnetic moment
- Magnetic monopoles
- Magnetic nanoparticles
- Magnetic nozzle
- Magnetic particle inspection
- Magnetic pulse welding
- Magnetic quantum number
- Magnetic reconnection
- Magnetic recording
- Magnetic refrigeration
- Magnetic reluctance
- Magnetic resonance
- Magnetic resonance cholangiopancreatography
- Magnetic semiconductors
- Magnetic separation
- Magnetic shape memory
- Magnetic skyrmions
- Magnetic storage
- Magnetic susceptibility
- Magnetic switch
- Magnetic tape
- Magnetic tension
- Magnetic tracking
- Magnetic trap
- Magnetic vector potential
- Magnetite
- Magnetization
- Magnetized target fusion
- Magneto
- Magneto-inertial fusion
- Magneto-optic effect
- Magneto-optical
- Magneto-optical traps
- Magnetocardiography
- Magnetocrystalline anisotropy
- Magnetoelastic
- Magnetoelectric effect
- Magnetoencephalography
- Magnetofection
- Magnetohydrodynamics
- Magnetometers
- Magnetomotive force
- Magnetoplumbite
- Magnetoreception
- Magnetoresistance
- Magnetorheological dampers
- Magnetorheological elastomer
- Magnetorheological finishing
- Magnetorheological fluid
- Magnetosomes
- Magnetosonic wave
- Magnetosphere
- Magnetostratigraphy
- Magnetotactic bacteria
- Magnetotellurics
- Magnets
- Magnification
- Magnifier
- Magnifying glass
- Magnitude
- Magnons
- Magnox
- Magnus effect
- Mahalanobis distance
- Mail merge
- Mailing lists
- Maillard reaction
- Main Himalayan Thrust
- Main bearing
- Main group
- Main lobe
- Main memory
- Main-group elements
- Maintainability
- Maintenance
- Maintenance engineering
- Maintenance philosophy
- Maintenance respiration
- Maintenance therapy
- Maintenance window
- Major gene
- Majorana
- Majorana fermions
- Majority function
- Majorization
- Makespan
- Malabsorption
- Malachite
- Malaise
- Malaoxon