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### Meaning of SYMMETRY

 Pronunciation: 'simitree WordNet Dictionary Definition: [n]  (mathematics) an attribute of a shape; exact correspondence of form on opposite sides of a dividing line or plane [n]  balance among the parts of something SYMMETRY is a 8 letter word that starts with S. Synonyms: Antonyms: See Also: Webster's 1913 Dictionary Definition: ```\Sym"me*try\, n. [L. symmetria, Gr. ?; sy`n with, together + ? a measure: cf. F. sym['e]trie. See {Syn-}, and {Meter} rhythm.] 1. A due proportion of the several parts of a body to each other; adaptation of the form or dimensions of the several parts of a thing to each other; the union and conformity of the members of a work to the whole. 2. (Biol.) The law of likeness; similarity of structure; regularity in form and arrangement; orderly and similar distribution of parts, such that an animal may be divided into parts which are structurally symmetrical. Note: Bilateral symmetry, or two-sidedness, in vertebrates, etc., is that in which the body can be divided into symmetrical halves by a vertical plane passing through the middle; radial symmetry, as in echinoderms, is that in which the individual parts are arranged symmetrically around a central axis; serial symmetry, or zonal symmetry, as in earthworms, is that in which the segments or metameres of the body are disposed in a zonal manner one after the other in a longitudinal axis. This last is sometimes called metamerism. 3. (Bot.) (a) Equality in the number of parts of the successive circles in a flower. (b) Likeness in the form and size of floral organs of the same kind; regularity. {Axis of symmetry}. (Geom.) See under {Axis}. {Respective symmetry}, that disposition of parts in which only the opposite sides are equal to each other. ```