Hypertrophy (Gr. ὑπέρ, over, and τροφή, nourishment). Excessive growth; thickening or enlargement of any part or organ.
Incisor (Lat. incido, to cut). Applied to the four front teeth of both jaws, which have sharp, cutting edges.
Incus. An anvil; the name of one of the bones of the middle ear.
Indian Hemp. The common name of Cannabis Indica, an intoxicating drug known as hasheesh and by other names in Eastern countries.
Inferior Vena Cava. The chief vein of the lower part of the body.
Inflammation (Lat. prefix in and flammo, to flame). A redness or swelling of any part of the body with heat and pain.
Insalivation (Lat. in and saliva, the fluid of the mouth). The mingling of the saliva with the food during the act of chewing.
Inspiration (Lat. inspiro, spiratum, to breathe in). The act of drawing in the breath.
Intestine (Lat. intus, within). The part of the alimentary canal which is continuous with the lower end of the stomach; also called the bowels.
Iris (Lat. iris, the rainbow). The thin, muscular ring which lies between the cornea and crystalline lens, giving the eye its special color.