- immunoassay
 - interpretive dance
 - interpretative dance
 - interpretative dancing
 - interpretive dancing
 - inaugural address
 - indirect question
 - indirect speech
 - internal auditor
 - inferior alveolar artery
 - inferior cerebellar artery
 - intestinal angina
 - inferior mesenteric artery
 - intercostal lymph node
 - internal carotid artery
 - induration of the arteries
 - incomprehensibly
 - inarticulate sound
 - inferior cerebral vein
 - inferior ophthalmic vein
 - inferior pulmonary vein
 - inferior thalamostriate vein
 - intercanthic diameter
 - intercarpal
 - inferior thyroid vein
 - internal cerebral vein
 - intercostal neuritis
 - intercostalis
 - internal ballotment
 - inferior epigastric vein
 - inner epicanthus
 - interoception
 - inadvertence
 - incense stick
 - incrusted
 - interrupted fern
 - indian capital
 - interior monologue
 - inoffensively
 - immanent
 - incumbent (on)
 - indirvidually
 - impenetrableness
 - indecency of speech
 - impenetrable
 - inspiratory stridor
 - internasal suture
 - intermaxillary suture
 - inmarriage
 - inpatient