mutation

noun

1.
(biology) an organism that has characteristics resulting from chromosomal alteration
mutant sport variation
Derived from:
mutate mutational
2.
(genetics) any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organism
chromosomal mutation genetic mutation
Derived from:
mutate mutational
3.
a change or alteration in form or qualities
Derived from:
mutational