The Collaborative International Dictionary of English v.0.48:

Splice \Splice\, n.
   A junction or joining made by splicing.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Splice \Splice\ (spl[imac]s), v. t. [imp. & p. p. Spliced
   (spl[imac]st); p. pr. & vb. n. Splicing.] [D. splitsen,
   splitten; akin to G. splissen, Sw. splissa, Dan. splisse, and
   E. split; -- from the dividing or splitting the ends into
   separate strands. See Split, v. t.]
   1. To unite, as two ropes, or parts of a rope, by a
      particular manner of interweaving the strands, -- the
      union being between two ends, or between an end and the
      body of a rope.
      [1913 Webster]

   2. To unite, as spars, timbers, rails, etc., by lapping the
      two ends together, or by applying a piece which laps upon
      the two ends, and then binding, or in any way making fast.
      [1913 Webster]

   3. To unite in marriage. [Slang]
      [1913 Webster]

   Splice grafting.ee under Grafting.

   To splice the main brace (Naut.), to give out, or drink, an
      extra allowance of spirits on occasion of special exposure
      to wet or cold, or to severe fatigue; hence, to take a
      dram.
      [1913 Webster]

WordNet (r) 3.0 (2006):

splice
    n 1: a junction where two things (as paper or film or magnetic
         tape) have been joined together; "the break was due to an
         imperfect splice" [syn: splice, splicing]
    2: joint made by overlapping two ends and joining them together
       [syn: lap joint, splice]
    v 1: join the ends of; "splice film"
    2: perform a marriage ceremony; "The minister married us on
       Saturday"; "We were wed the following week"; "The couple got
       spliced on Hawaii" [syn: marry, wed, tie, splice]
    3: join together so as to form new genetic combinations; "splice
       genes"
    4: join by interweaving strands; "Splice the wires"

Moby Thesaurus II by Grady Ward, 1.0:

181 Moby Thesaurus words for "splice":
   accouple, accumulate, adhesive, affixation, agglomeration,
   agglutinate, agglutination, aggregation, amass, annexation,
   arrange a match, articulate, articulation, assemble, associate,
   attachment, band, bandage, belt, bend, bind, bind up, binding,
   bond, brace, bracket, bracketing, braid, bridge, bridge over,
   bundle, cement, chain, cinch, clap together, clasping, clustering,
   collect, combination, combine, communication, comprise,
   concatenate, concatenation, concourse, concurrence, confluence,
   congeries, conglobulate, conglomeration, conjoin, conjugate,
   conjugation, conjunction, connect, connection, convergence,
   copulate, copulation, couple, coupling, cover, do up, embrace,
   encompass, enlace, entwine, fastener, fastening, gather, gathering,
   gird, girding, girdle, girt, girth, give away, glue, hitch,
   hooking, hookup, include, intercommunication, intercourse,
   interknit, interlace, interlinking, intertie, intertissue,
   intertwine, intertwist, interweave, intort, join, join together,
   joinder, joining, joint, jointure, junction, knit, knot, knotting,
   lace, lash, lashing, lay together, league, leash, liaison,
   ligation, link, linkage, linking, loom, loop, lump together,
   make a match, make one, marriage, marry, marshal, mass, mat, match,
   mate, meeting, merge, merger, merging, mobilize, net, noose,
   nuptial, pair, pairing, piece together, plait, pleach,
   put together, raddle, roll into one, rope, solder, span, splicing,
   stick together, sticking, strap, swaddle, swathe, symbiosis,
   take in, tape, tie, tie up, tie-in, tie-up, tieing, tissue, truss,
   twill, twine, twist, unification, unify, union, unite,
   unite in marriage, wattle, weave, web, wed, weld, wire, wrap,
   wrap up, wreathe, yoke, yoking, zipping