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Meaning of spiral binding

spi'ral bind'ing

Pronunciation: [key]
  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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.