大蜗牛科：为肺螺目(Pulmonata)柄眼亚目(Stylommtophora)的一科，为感染人的吸虫的宿主- Bourgery's ligament
- Bourget's test
- Bourneville's disease
- bout
- bouton
- boutonneuse
- boutonnière
- Bouveret's disease (syndrome)
- Bovet
- Bovimyces pleuropneumoniae
- bovine
- bovovaccination
- bovovaccine
- bow
- Bowditch's law
- bowel
- bowenoid
- Bowen's disease(precancerous dermatosis)
- bowleg
- Bowman's capsule,etc.
- box
- boxing
- box-note
- Boyer'sbursa,cyst
- Boyle's law