The lack or severe impairment of the ability to hear. Deafness is usually genetic or congenital as a result of prenatal viral infection, birth trauma, or other causes. Acquired deafness is caused mostly by drug toxicity, trauma, and certain diseases. Cochlear implants are used to treat some forms of deafness.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
How to use deafness in a sentence
When asked, the townspeople with hearing did not consider deafness a disability at all.
Thousands of other children suffered seizures, permanent brain damage or deafness.A Fully Vaccinated Woman Contracted and Then Spread Measles. WTF? | Elizabeth Lopatto | April 15, 2014 | THE DAILY BEAST
For me, deafness opened up new worlds, rather than the other way around.
Where deafness and infertility and all manner of other impairments are far more common.Worried About Incurable Tuberculosis? Stand By for Incurable Everything. | Megan McArdle | March 12, 2013 | THE DAILY BEAST
Her deafness was always a source of pride, but here she is forced to see how deaf individuals can be robbed of their own agency.ABC Family’s ‘Switched at Birth’ ASL Episode Recalls Gallaudet Protest | Jace Lacob | February 28, 2013 | THE DAILY BEAST
From that region they issue to inflict diseases, especially blindness and deafness.Solomon and Solomonic Literature | Moncure Daniel Conway
At Oxford Circus they got out, and left me pondering on deafness and dumbness.A Boswell of Baghdad | E. V. Lucas
A curious fact relating to the white cat of not only the long but also the short-haired breed is their deafness.Our Cats and All About Them | Harrison Weir
One disease followed another, ending with scarlet fever and deafness.Mark Twain, A Biography, 1835-1910, Complete | Albert Bigelow Paine
The attribute wise excludes folly and ignorance; hearing and seeing remove deafness and blindness.A History of Mediaeval Jewish Philosophy | Isaac Husik