'''Axial symmetry''' is [[symmetry]] around an axis; an object is axially symmetric if its appearance is unchanged if rotated around an axis.<ref>[http://amsglossaryglossary.allenpressametsoc.comorg/glossarywiki/search?p=1&query=axial+symmetryAxial_symmetry "Axial symmetry"] [[American Meteorological Society]] glossary of meteorology. Retrieved 2010-04-08.</ref> For example, a [[baseball bat]] without trademark or other design, or a plain white [[saucer|tea saucer]], looks the same if it is rotated by any angle about the line passing lengthwise through its center, so it is axially symmetric.