- microsystem
- microwave receiver
- microwave system
- microwave viba
- middleware
- MIDI output
- millennium bug
- milliard
- million
- millionth
- millisecond-ms
- miniature
- miniature completions
- minicomputer
- minidisk
- minimal complex
- minimal geodesic
- minimal principle
- minimum value
- Minkowskian geometry
- minor arc
- minor key
- minor radius
- minus zone
- mirror square
- mirrored unit
- miscellaneous
- miscount
- misshapen
- mix
- mixed data
- mixed notation
- mixed population
- mixed tension
- mixing
- mnemonic symbol
- mnemoric code
- mnemoric field
- mnemoric symbol
- mob
- mobile communications
- mobile computing
- mobile terminal
- Mobius strip
- modal
- modal logic
- modal system
- modal value
- modality
- mode change
- mode conversion
- mode converter
- mode description
- mode distribution
- mode field
- mode filter
- mode indicator
- mode name
- mode number
- mode selection
- mode shift
- mode skip
- mode switch
- mode switching
- mode table
- mode transducer
- model checking
- model experiment
- model statement
- model symbol
- model test
- modeless dialog
- modelling coordinates
- modelling transformation
- modem
- modem card
- modem connection
- modem eliminator
- modem port
- moderate shock
- modern
- modern algebra
- modern geometry
- modification
- modification command
- modification level
- modified convexity
- modified mean
- modify
- modular
- modular circuit
- modular compilation
- modular conception
- modular design
- modular element
- modular equation
- modular field
- modular form
- modular group
- modular house