mu‧tant /ˈmjuːtənt/ noun [countable]
[Date: 1900-2000; Language: Latin; Origin: present participle of mutare; ⇒ mutate]

1. an animal or plant that is different in some way from others of the same kind, because of a change in its genetic structure

2. something that is very different from others of the same type, in a way that is strange or bad – often used humorously
—mutant adjective [only before noun]

[TahlilGaran] Dictionary of Contemporary English ▲