v. t. [ imp. & p. p. Interleaved p. pr. & vb. n. Interleaving. ] [ Pref. inter- + leaf. ] 1. To insert a leaf or leaves in; to bind with blank leaves inserted between the others; as, to interleave a book. [ 1913 Webster ]
2.Hence: To insert something alternately between the parts of; as, to interleave transparencies with the corresponding pages. [ PJC ]