IPA: /æbˈnɔːrməlɪti/
KK: /æbˈnɔrməlɪti/
A situation or condition that is different from what is usual or expected.
The doctor noted an abnormality in the patient's test results.
Abnormality is formed from "ab-" (meaning away from) and "normalis" (meaning conforming to a standard or rule) combined with the suffix "-ity" (meaning the state or condition of). The word describes a state or condition that deviates from what is considered normal.
Think of 'ab-' meaning 'away from' and 'normal' referring to a standard — so abnormality means a condition that is away from the standard.