- aberrance, aberrancy, aberration, deviance - a state or condition markedly different from the norm
--1 is a kind of abnormality, abnormalcy, abnormal condition
--1 has particulars:chromosomal aberration, chromosomal anomaly, chrosomal abnormality, chromosonal disorder; deflection, warp - deviation, deviance - deviate behavior
--2 is a kind of abnormality, irregularity