asthma

noun
UK /ˈæs.mə/
US /ˈæz.mə/

A sickness that makes it hard to breathe sometimes.

My cousin carries an inhaler because he has asthma.


OTHER MEANINGS

2. A chronic condition in which the airways narrow and swell, causing difficulty breathing.

Her asthma flares up during pollen season.

3. A medical diagnosis involving recurrent attacks of breathlessness and wheezing.

The doctor confirmed the asthma after a breathing test.

4. In older usage, a heavy or labored breathing sound.

The old horse's asthma could be heard across the stable.