杆单胞虫亚目：植鞭毛纲(phytomastigophorea)眼虫目(Euglenida)中的一个亚目的原虫，无色，似植物，双鞭毛；杆单胞虫属(Rhabdomonas)为其代表属- Bérard's aneurysm, ligament
- Béraud's valve
- Büngner's bands
- C'
- C
- C.
- tetrabasic
- tetrablastic
- tetraboric acid
- tetrabrachius
- tetrabromofluorescein
- tetrabromophenolphthalein
- tetrabromophthalein sodium
- tetracain
- tetrachirus
- tetrachlorethane
- tetrachloride
- tetrachlormethane
- tetrachloroethylene
- tetrachlorphenoxide
- tetrachromic
- tetracid
- tetracrotic
- tetracycline
- Tetracyn