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noun, Astronomy.
any of the elongated and curved spiral sections that are connected to the center of a spiral galaxy.


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  • Spiral-binding

    noun 1. a binding, as for a notebook or booklet, in which the pages are fastened together by a spiral of wire or plastic that coils through a series of holes punched along one side of each page and the front and back covers. spiral binding noun 1. (bookbinding) a method of securing the pages […]

  • Spiral-bound

    [spahy-ruh l-bound] /ˈspaɪ rəlˈbaʊnd/ adjective 1. having a spiral binding.

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