Definition of deafness in English:

NOUN

1The condition of lacking the power of hearing or having impaired hearing:

the baby is at risk of being born with profound deafness

loud music is a cause of deafness

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Extreme effects of excessive quinine use include blindness and deafness.

Fortunately, the rate of congenital deafness is small, as is the incidence of deafness caused by disease.

In around one in a thousand cases, measles can cause a serious brain condition which can lead to brain damage and deafness.

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1.1The state of being unwilling or unable to hear or pay attention to something:

the deafness shown by political leaders

a worrying example of deafness to human rights concerns

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We are told that he is being brave in his deafness to majority opinion in Britain and the world.

It takes a huge amount of blustering and a large measure of deafness to defend the sales of British gold.

The perfect crime consists, not in killing the victim, but in obtaining the silence of the witnesses, the deafness of the judges, and the inconsistency of the testimony.