China 
Africa 
- Model-based definition
- Model-based design
- Model-based reasoning
- Model-driven engineering
- Model-free
- ModelCenter
- Modelica
- Modeling and simulation
- Modeling language
- Models of computation
- Modem
- Moderate resolution imaging spectroradiometer
- Modernization
- Modes of variation
- Modifications
- Modified atmosphere
- Modified compression field theory
- Modified nodal analysis
- Modified starch
- Modular
- Modular addition
- Modular arithmetic
- Modular building
- Modular construction
- Modular decomposition
- Modular design
- Modular exponentiation
- Modular group
- Modularity
- Modulation
- Modulation doping
- Modulation order
- Modulational instability
- Module
- Moduli
- Modulo
- Modulus
- Modus ponens
- Mohammed bin Rashid Al Maktoum Solar Park
- Mohr's circle
- Mohr-Coulomb theory
- Mohs hardness
- Mohs scale
- Moiety
- Moine Thrust
- Moire
- Moisture
- Moisture analysis
- Moisture content
- Moisture management
- Moisture meters
- Moisture recycling
- Moisture sorption isotherm
- Moisture stress
- Moisture wicking
- Moisturizers
- Molar absorption coefficient
- Molar concentration
- Molar conductivity
- Molar heat capacity
- Molar mass
- Molar mass distribution
- Molar refractivity
- Molar volume
- Molasse
- Molasse basin
- Mold
- Molded pulp
- Molden
- Molding
- Molding sand
- Mole
- Mole fraction
- Molecular beams
- Molecular binding
- Molecular biology
- Molecular biophysics
- Molecular breeding
- Molecular chaos
- Molecular cloning
- Molecular communication
- Molecular conductance
- Molecular crystals
- Molecular descriptor
- Molecular diagnostics
- Molecular diffusion
- Molecular distillation
- Molecular dynamics
- Molecular electronics
- Molecular engineering
- Molecular entity
- Molecular formula
- Molecular genetics
- Molecular geometry
- Molecular graph
- Molecular graphics
- Molecular imaging
- Molecular imprinting
- Molecular ions
- Molecular machines
- Molecular markers
- Molecular mass
- Molecular medicine
- Molecular model
- Molecular motors
- Molecular nanotechnology
- Molecular orbital
- Molecular orbital theory
- Molecular pathology
- Molecular phylogenetics
- Molecular probe
- Molecular property
- Molecular recognition
- Molecular self-assembly
- Molecular sensors
- Molecular sieves
- Molecular solid
- Molecular structure
- Molecular switches
- Molecular symmetry
- Molecular tagging velocimetry
- Molecular tweezers
- Molecular vibration
- Molecular weight
- Molecular weight cut off
- Molecular weight cut-off
- Molecular wires
- Molecularity
- Molecularly imprinted polymer
- Molecule-based magnets
- Mollier diagram
- Mollifiers
- Molpro
- Molten carbonate fuel cell
- Molten globule
- Molten salt
- Molten salt battery
- Molten-salt battery
- Molten-salt reactor experiment
- Molybdate
- Molybdenum
- Molybdenum blue
- Molybdenum deficiency
- Molybdenum dioxide
- Molybdenum diselenide
- Molybdenum disilicide
- Molybdenum disulfide
- Molybdenum ditelluride
- Molybdenum trioxide
- Molybdenum-99