n.; pl. Abnormities [ LL. abnormitas. See Abnormous. ] Departure from the ordinary type; irregularity; monstrosity. “An abnormity . . . like a calf born with two heads.” Mrs. Whitney. [ 1913 Webster ]
n.; pl. Abnormalities 1. The state or quality of being abnormal; variation; irregularity. Darwin. [ 1913 Webster ]
2. Something abnormal. [ 1913 Webster ]