齿突韧带联合：横韧带前表面与齿突背侧之间两个寰枢关节中后面的一个- isochronous
- isochroous
- isocitrate
- isocitrate dehydrogenase
- isocitric acid
- isocoagulase
- isocolloid
- isocomplementophilic
- isoconazole
- isocoria
- isocortex
- isocreatinine
- Isocrin
- isocyanide
- isocyclic
- isocytolysine
- isocytosis
- isodactylism
- isodesmosine
- isodiametric
- isodispersoid
- isodontic
- isodose
- isodulcite
- isodynamic