n. The act or process of changing; change; variableness.n. Rotation; succession.n. In phonetics, the change of a vowel through the influence of an a, i, or u in the following syllable: proposed for rendering German umlaut into English.n. In music:n. In medieval solmization, the change or passage from one hexachord to another, involving a change of the syllable applied to a given tone.n. In violin-playing, the shifting of the hand from one position to another.n. The change or alteration in a boy's voice at puberty.n. In French law, transfer by purchase or descent.n. A post-house.n. In biology:n. A sudden and inheritable change of type; a discontinuous variation; a sport.n. One of a group of individuals which originate directly and immediately from pure-bred stock and have uniform or nearly uniform characteristics different from those of the parents. Mutations differ in form from their parents in much the same manner as closely related species differ from each other. The seeds from a single plant of one of the evening primroses. Œnothcra Lamarckiana, often produce several mutations in the first generation.