chromosomal mutation(n = noun.event) genetic mutation, mutation - (genetics) any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organism;
is a kind of alteration, change, modification
has parts: mutagenesis
has particulars: deletion, inversion, transposition, gene mutation, point mutation, reversion, saltation

chromosomal, chromosomal aberration, chromosomal anomaly, gene mutation, genetic mutation, mutation, ocher mutation, point mutation