(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.

A type of pronunciation change required when speaking certain Celtic languages.

A type of pronunciation change required when speaking certain Celtic languages.

A point mutation that results in the substitution of one amino acid by another.

(linguistics) A type of sound change in which a vowel's place of articulation is raised (becomes more close) under the influence of a following /i/, /j/ or similar sound.

Abbreviation of mutatis mutandis.

Abbreviation of mutatis mutandis.

(genetics) The process by which a small population accumulates harmful mutations, which leads to loss of fitness and decline of the population size, which may lead to further accumulation of deleterious mutations due to fixation by genetic drift.

plural of mutational meltdown