noun
- Inflammation of the mastoid bone, typically caused by bacterial infection spreading from the middle ear.
Usage: medical term; uncountable noun
Examples
- The child was diagnosed with mastoiditis after the ear infection went untreated.
- Mastoiditis can develop as a complication of acute otitis media.
- Symptoms of mastoiditis include pain behind the ear and fever.
- Antibiotics are often prescribed to treat mastoiditis in its early stages.
- In severe cases, mastoiditis may require surgical intervention.