What is the meaning of Mutation?

Any alteration or change.

Any heritable change of the base-pair sequence of genetic material.

A mutant.

An alteration in a particular sound of a word, especially the initial consonant, which is triggered by the word's morphological or syntactic context and not by its phonological context.

The transfer of title of an asset in a register.

A group of thrushes.

substitution

mutation

change, alteration, mutation

mutation

mutation (alteration or change, more generally)

Source: wiktionary.org