Marcille - melanogenesis
- marrow cavity
- marrow cell
- marrow space
- marrubiin
- Marrubium
- MARS
- MARSA
- Marsdenia
- Marseilles fever
- Marsh disease
- Marsh disease
- marsh fever
- marsh gas
- Marsh test
- Marshall
- Marshall fold
- Marshall fold vein
- Marshall Hall facies
- Marshall syndrome
- Marshall-Marchetti-Krantz operation
- Marshall-Marchetti-Krantz operation
- Marshallagia marshalli
- marshmallow
- marshmallow root
- marsupia
- marsupia patellaria
- marsupial
- Marsupialia
- marsupialization
- marsupialize
- marsupium
- MART
- Martegiani
- Martin
- Martin speculum
- Martin-Bell syndrome
- Martin-Bell syndrome
- Martin-Lester agar
- Martinotti
- Martinotti cell