symmetry

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Noun[change]

Singular
symmetry

Plural
symmetries

  1. (uncountable) A balance or harmony of parts.
  2. (countable) A division of the body would produce two parts which are mirror images of each other.
  3. An arrangement of parts around a central point.
    An orange has symmetry: it is a sphere with segments arranged around a common central line.
    The segments of an orange show symmetry: their shape and relative positions are the same.