- measurable set
- measurable space
- measure field
- measure function
- measure process
- measure space
- measured service
- measurement
- measurement unit
- maroon
- mars
- marxian dialectics
- masking plate
- mass
- mass communication
- mass conversion
- master card
- master console
- master document
- master file
- master format
- master group
- master oscillator
- Master Password
- master priming
- master processor
- master record
- master routine
- master sample
- master scheduler
- master server
- master station
- master synchronizer
- master tape
- master terminal
- master time
- master trace
- master videodisc
- master workstation
- match
- match coprocessor
- match fields
- match key
- match level
- match processing
- matched
- matched filter
- matched load
- matched samples
- matching
- matching impedance
- matching network
- matching operator
- matching words
- mate system
- mechanical dialer
- mechanical engineering
- mechanical hysteresis
- mechanical impedance
- mechanical integrator
- mechanical link
- mechanical mass
- mechanical mouse
- mechanical ohm
- mechanical power
- mechanical replacement
- mechanical resistance
- mechanical scanner
- mechanical translation
- mechanism
- mechanist
- media conversion
- media eraser
- medial test
- medium map
- medium model
- medium priority
- medium shot
- medium waves
- meet homomorphism
- megabyte
- member name
- member set
- membership
- membership directory
- membrane analogy
- membrane equation
- membrane keyboard
- memo field
- memo function
- memoirs
- memoric address
- memoric diagram
- memory addressing
- memory bank
- memory capacity
- memory card
- memory cell
- memory chip
- memory configuration