Abnormalities (9)
I believe the answer is:
anomalies
'abnormalities' is the definition.
(anomaly is a kind of abnormality)
This is all the clue.
(Other definitions for anomalies that I've seen before include "They're unusual or different from what is expected" , "Deviations from the normal or common" , "odd events" , "exceptions" , "Things deviating from norm" .)