- mamillopeduncular tract
- malraux
- modulated waveform
- modulation percentage
- modulation index
- mylabris pustulata
- macro_
- macroblepharia
- macroclimate
- macrodystrophia
- macleods syndrome
- macroassembly program
- macrosmic
- macroglobin
- microgeographic variation
- macrotrace
- macrogenitosomia precox
- macrostatement number
- macula utriculi
- macula sacculi
- madar
- mary shelley
- magenesium ammonium phosphate
- magenesium oleate
- magill forceps
- magnetic ink scanner
- malting point
- merida
- mauritius
- markoff
- marking_end distortion
- mongolia
- m.m.
- magnetic card
- magnetic encoding
- met on
- morley
- machine equation
- multidirectional microphone
- machine intelligence
- multicentricity
- magnetic ink character sorter
- multiplier
- melchior
- mantineia
- malthus
- Mantis religioso
- meinicke reaction
- myeloid
- myelinogenesis