say it: SIM-uh-tree
symmetry is a noun meaning "(mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane". It carries 3 recorded senses.
(mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane
mathematics
balance among the parts of something
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for symmetry come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.