Meaning

• A person or object that deviates from the rest of a group.

• A group, individual, or structure that deviates from the usual or natural type, especially with an atypical chromosome number.

Meaning

• Differing from the norm.

• (sometimes figurative) Straying from the right way; deviating from morality or truth.

• Deviating from the ordinary or natural type; exceptional; abnormal.