- incompressibility
- inexactitude
- inexactness
- injuriousness
- inventory control
- indian pharmacopoeia list
- inversely
- inversion of iris
- indomitable
- interpeduncular nucleus
- interpenduncular space
- interrogating
- interrogative mood
- inquisitively
- in the flower of one's age
- information source
- in each and every nerve
- interlayer
- inactive drug
- imaginative comparison
- Indian rat snake
- in a line
- in a low voice
- indexed sequential organization
- insulin shock therapy
- insulin shock
- insulin shock treatment
- Iowa crab apple
- interrecord gap
- in details
- intracellular
- interstitial cystitis
- interstitial nephritis
- involucre
- in disarray
- impressive aphasia
- implicitness
- intrinsic cancer of larynx
- intramembranous ossification
- in a small way
- in miniature
- involutional
- intensely excited
- in isolation
- in its own right
- iodized contrast media
- iodopyracet
- isologous graft
- impregnating agent
- ionian sea