-ism

-ism

noun suffix \ˌiz-əm\

Definition of -ISM

1

: act, practice, or process <hypnotism>

2

a : state, condition, or property <heterothallism> b : abnormal state or condition resulting from excess of a (specified) thing or marked by resemblance to a (specified) person or thing <alcoholism> <morphinism> <mongolism>