| 1. | the correspondence in size, form, and arrangement of parts on opposite sides of a plane, line, or point; regularity of form or arrangement in terms of like, reciprocal, or corresponding parts. |
| 2. | the proper or due proportion of the parts of a body or whole to one another with regard to size and form; excellence of proportion. |
| 3. | beauty based on or characterized by such excellence of proportion. |
| 4. | Mathematics.
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| 5. | Physics. a property of a physical system that is unaffected by certain mathematical transformations as, for example, the work done by gravity on an object, which is not affected by any change in the position from which the potential energy of the object is measured. |
sym·me·try (sĭm'ĭ-trē) n. pl. sym·me·tries
[Latin symmetria, from Greek summetriā, from summetros, of like measure : sun-, syn- + metron, measure; see mē-2 in Indo-European roots.] |
symmetry sym·me·try (sĭm'ĭ-trē)
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
in biology, the repetition of the parts in an animal or plant in an orderly fashion. Specifically, symmetry refers to a correspondence of body parts, in size, shape, and relative position, on opposite sides of a dividing line or distributed around a central point or axis. With the exception of radial symmetry (see below), external form has little relation to internal anatomy, since animals of very different anatomical construction may have the same type of symmetry
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