orbit - definition and synonyms


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  1. 1
    [countable] astronomy the path that is taken by an object moving around a larger object in space

    the planet’s orbit around the sun

    in orbit (=moving around a larger object):

    Space stations are designed to remain in orbit for years.

  2. 2
    [singular] an area in which someone or something has power or influence

    For many years the region remained within the orbit of imperial Rome.

  3. 3
    [countable] chemistry the path that is taken by an electron around the nucleus of an atom