After acquiring language.

Deafness (hearing loss) that occurs after language has been acquired.

A test that measures how you maintain your balance when one or more of your senses is blocked.

The interaction between two drugs such that the pharmacologic response is greater than the sum of the individual responses to each drug. For example, taking two ototoxic drugs at the same time may cause a much more severe side effects to your ears than would be the case if you had taken the same drugs, but at […]

Before acquiring language.

A person who is either born deaf or who lost his hearing early in childhood, before acquiring language.