食管襞折术：把食管襞折叠起来而使之变窄- 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
- isodynamogenic