See Diplacusis.

See Physicians’ Desk Reference.

See Pressure Equalization tube.

An eardrum that has ruptured or has a hole in it. The fancy term is tympanic membrane perforation. This is commonly a result of a middle ear infection, and is often indicated by pain, bleeding or discharge.

Around the time of acquiring language.

The outer of the two fluids in the inner ear. The inner fluid is called endolymph.