9781422288184

Often we look so long at the closed door that we do not see the one which has been opened for us. —Helen Keller

Words t o Unders t and

audiol ogical: Having to do with one’s sense of hearing. molecules : The smallest particles that elements and compounds can be divided into before their chemi- cal or physical properties change. amplif ies: Makes greater or increases.

malformat ion: Something that is not formed in the correct way. audiologis t : A doctor or technician who studies hearing and/or treats hearing loss.