- melanochroid
- melanoderma
- monoural hearing aid
- malarial pneumonitis
- mauriceau manoeuvre
- mason_dixon line
- mesotherm
- myomalacia
- minimum delay programming
- moss in a mountain and wit in a poor man's breast are little thought of
- mercuric phosphide
- multidrop line
- meta diabetes
- master programe file
- multilingualism
- microprogram microcode
- microangiopathic_ haemolytic anaemia
- microprogram control logic
- microprogram microassembler
- microprogram instruction set
- microprogram field
- microprogram control store
- michaelmastide
- microcobol
- macrodefinition library
- make known to
- maximum weight per cycle
- multilobular cirrhosis
- mouth ulcers
- multiple utility
- mason and dixon line
- meningioma cell
- mp3
- message control flag
- message header
- mithridates the great
- mediastinal lymph node
- mediastinal emphysema
- make light of
- magnetic tape label
- memory exchange
- moraxella
- multifunction system
- make a hit
- macrocommand
- mononeuritis multiplex
- mesorrhinan
- maximum distal epiphysial breadth
- mcluhan
- mesodiacritic