<p><strong>Noun</strong></p><ul><li>the act, process, or accident of varying: a variation in opinion.</li><li>Synonyms: difference, divergence, deviation, modification, alteration, mutation.</li><li>an instance of this: There is a variation in the quality of fabrics in this shipment.</li><li>amount, rate, extent, or degree of change: a temperature variation of 40° in a particular climate.</li><li>a different form of something: variant.</li><li>Music: the transformation of a melody or theme with changes or elaborations in harmony, rhythm, and melody.</li><li>a varied form of a melody or theme, especially one of a series of such forms developing the capacities of the subject.</li><li>Ballet: a solo dance, especially one forming a section of a pas de deux.</li><li>Astronomy: any deviation from the mean orbit of a heavenly body, especially of a planetary or satellite orbit.</li><li>Navigation: the angle between the geographic and the magnetic meridian at a given point, expressed in plus degrees east or minus degrees west of true north.</li><li>Biology: a difference or deviation in structure or character from others of the same species or group.</li></ul>