symmetry (ˈsɪmɪtrɪ)  
—n , pl tries  
1.  similarity, correspondence, or balance among systems or parts of a system 
2.  maths See symmetrical an exact correspondence in position or form about a given point, line, or plane 
3.  beauty or harmony of form based on a proportionate arrangement of parts 
4.  physics the independence of a property with respect to direction; isotropy 
[C16: from Latin symmetria, from Greek summetria proportion, from 
symmetry sym·me·try (sĭm'ĭtrē)
n.
Exact correspondence of form and constituent configuration on opposite sides of a dividing line or plane or about a center or an axis.
symmetry (sĭm'ĭtrē) Pronunciation Key
