lymph nodule - marcid
- Mace, MACE
- MACEmed
- macer
- Macerate
- macerated
- maceration
- macerative
- Macewen
- Macewen operation
- Macewen sign
- Macewen sign triangle
- Macewen triangle
- Mach
- Mach number
- Machado-Guerreiro reaction
- Machado-Guerreiro test
- Machado-Guerreiro test (reaction)
- Machado-Joseph disease
- machine
- Machine, continuous passive motion machine
- Machine, CPM
- Machine, heart-lung
- machinery murmur
- mAChR
- Machupo virus
- Mackay
- MacKay-Marg electronic tonometer
- MacKay-Marg electronic tonometer
- Mackenrodt
- Mackenrodt ligament
- Mackenrodt ligament
- Mackenzie
- Mackenzie amputation
- Mackenzie syndrome
- Mackenzie syndrome
- mackerel shark
- MacLachlan
- MacLean-Maxwell disease
- MacLean-Maxwell disease
- Macleod
