Ology Suffix Words Starting with I
| Iamatology | the study of remedies |
| Ichnology | the study of fossil footprints,tracks and burrows |
| Ichthyology | the study of fish |
| Iconology | the study of icons; symbols |
| Ideogeny | the study of origins of ideas |
| Ideology | the science of ideas; system of ideas used to justify behaviour |
| Idiomology | the study of idiom,jargon or dialect |
| Idiopsychology | the psychology of one's own mind |
| Immunology | the study of immune system |
| Immunopathology | the study of immunity to disease |
| Indology | the study of the history, languages, and cultures of the Indian subcontinent |
| Insectology | the study of insects |
| Iranology | the study of history, literature, art and culture of Iran (Persia) |
| Irenology | the study of peace |
| Iridology | the study of the iris; diagnosis of disease based on the iris of the eye |
| Islamology | the study of the Islam |