疾病内因，体内病因- bradysphygmia
- bradystalsis
- bradytachycardia
- bradyteleocinesia
- bradyteleokinesis
- bradytocia
- bradytrophia
- bradytrophic
- bradyuria
- bradyzoite
- braidism
- Braid's strabismus
- Brailey's operation
- braille
- brain
- Brain's reflex
- brain stem
- brake
- bran
- branch
- branched-chain 2-keto acid dehydrogenase
- branched-chain aminoacid transaminas
- branched-chain α-keto acid decarboxylase
- brancher deficiency
- brancher enzyme, branching enzyme