That which causes mutation or change.

plural of mutator

Capable of undergoing mutation.

Abbreviation of mutation.

(genetics) A genetic mutation that either inserts or deletes a number of nucleotides that is not divisible by three (i.e., a non-integer number of codons), altering the reading frame of the portion of the gene downstream of the mutation and causing it to code for a completely different protein sequence.

An alteration of the initial consonant of a word which occurs in certain Celtic languages under particular linguistic circumstances.

(linguistics) An alteration of the initial consonant of a word which occurs in certain Celtic languages under particular linguistic circumstances; lenition.

An alteration of the initial consonant of a word which occurs in certain Celtic languages under particular linguistic circumstances.

(genetics) A mutation that involves the replacement, addition or deletion of a small number of bases (especially just one) at a specific site within a gene.

(genetics) A point mutation that generates either a premature stop codon, or a codon that does not specify any amino acid.