<p><strong>Noun</strong></p><ul><li>a deviation from the common rule, type, arrangement, or form.</li><li>an anomalous person or thing; one that is abnormal or does not fit in: With his quiet nature, he was an anomaly in his exuberant family.</li><li>an odd, peculiar, or strange condition, situation, quality, etc.</li><li>an incongruity or inconsistency.</li><li>Astronomy: a quantity measured in degrees, defining the position of an orbiting body with respect to the point at which it is nearest to or farthest from its primary.</li><li>Meteorology: the amount of deviation of a meteorological quantity from the accepted normal value of that quantity.</li><li>Grammar: irregularity.</li></ul>