- Something that deviates from the normal.
- An abnormal condition or state.
From latin abnormis "out of the usual or normal course or condition".
- The abnormality was found during the routine checkup.
- The company's profits were an abnormality for the industry.
- The behavior of the suspect was an abnormality in the investigation.
- The abnormality in the weather patterns caused crop failures.
- The abnormality in the results from the blood test was cause for concern.