ENGLISH
REFERENCE

symmetry

n.
US //ˈsɪmətɹi// UK //sˈɪmətɹi// sym·me·try
  1. 1 physical balance (n.)
    B2 Upper Intermediate Math

    the quality of having two halves that are exactly the same size and shape.

    the exact correspondence in size, form, and arrangement of parts on opposite sides of a plane, line, or point.

    Example

    The butterfly's wings were beautiful because of their perfect symmetry.

    Example

    The architect relied on bilateral symmetry to create a sense of stability and grandeur in the cathedral's facade.

    Usage

    Often used as an uncountable noun when discussing the abstract concept.

  2. 2 aesthetic harmony (n.)
    C1 Advanced Academic

    a balanced and pleasing arrangement of different parts.

    the harmonious and beautiful proportion of the elements of a whole.

    Example

    There is a nice symmetry between the two stories in this book.

    Example

    The poet achieves a structural symmetry by opening and closing the work with the same haunting imagery of the sea.

    Teacher's tip

    In academic writing, this sense often describes the balance between two ideas or arguments rather than physical objects.

Origin

From Latin symmetria, from Ancient Greek συμμετρία (summetría), from σύμμετρος (súmmetros, “symmetrical”), from σύν (sún, “with”) + μέτρον (métron, “measure”). By surface analysis, sym- + -metry.

Word family

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