Source : Webster's Revised Unabridged Dictionary (1913)

Interleave \In`ter*leave"\, v. t. [imp. & p. p. {Interleaved};
   p. pr. & vb. n. {Interleaving}.] [Pref. inter- + leaf.]
   To insert a leaf or leaves in; to bind with blank leaves
   inserted between the others; as, to interleave a book.

Source : WordNet®

interleave
     v 1: provide (books) with blank leaves
     2: intersperse the sectors on the concentric magnetic circular
        patterns written on a computer disk surface to guide the
        storing and recording of data
     3: intersperse alternately, as of protective covers for book
        illustrations

Source : Free On-Line Dictionary of Computing

interleave
     
        {interleaving}