The Collaborative International Dictionary of English v.0.48:

Grafting \Graft"ing\ n. 1. (Hort.) The act, art, or process of
   inserting grafts.
   [1913 Webster]
   2. (Naut.) The act or method of weaving a cover for a ring,
      rope end, etc.
      [1913 Webster]

   3. (Surg.) The transplanting of a portion of flesh or skin to
      a denuded surface; autoplasty.
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   4. (Carp.) A scarfing or endwise attachment of one timber to
      another.
      [1913 Webster]

   Cleft grafting (Hort.) a method of grafting in which the
      scion is placed in a cleft or slit in the stock or stump
      made by sawing off a branch, usually in such a manaer that
      its bark evenly joins that of the stock.

   Crown grafting or Rind grafting, (Hort.) a method of
      grafting which the alburnum and inner bark are separated,
      and between them is inserted the lower end of the scion
      cut slantwise.

   Saddle grafting, a mode of grafting in which a deep cleft
      is made in the end of the scion by two sloping cuts, and
      the end of the stock is made wedge-shaped to fit the cleft
      in the scion, which is placed upon it saddlewise.

   Side grafting, a mode of grafting in which the scion, cut
      quite across very obliquely, so as to give it the form of
      a slender wedge, is thrust down inside of the bark of the
      stock or stem into which it is inserted, the cut side of
      the scion being next the wood of the stock.

   Skin grafting. (Surg.) See Autoplasty.

   Splice grafting (Hort.), a method of grafting by cutting
      the ends of the scion and stock completely across and
      obliquely, in such a manner that the sections are of the
      same shape, then lapping the ends so that the one cut
      surface exactly fits the other, and securing them by tying
      or otherwise.

   Whip grafting, tongue grafting, the same as splice
      grafting, except that a cleft or slit is made in the end
      of both scion and stock, in the direction of the grain and
      in the middle of the sloping surface, forming a kind of
      tongue, so that when put together, the tongue of each is
      inserted in the slit of the other.

   Grafting scissors, a surgeon's scissors, used in
      rhinoplastic operations, etc.

   Grafting tool.
      (a) Any tool used in grafting.
      (b) A very strong curved spade used in digging canals.

   Grafting wax, a composition of rosin, beeswax tallow, etc.,
      used in binding up the wounds of newly grafted trees.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Graft \Graft\, v. t. [imp. & p. p. Grafted; p. pr. & vb. n.
   Grafting.] [F. greffer. See Graft, n.]
   1. To insert (a graft) in a branch or stem of another tree;
      to propagate by insertion in another stock; also, to
      insert a graft upon. [Formerly written graff.]
      [1913 Webster]

   2. (Surg.) To implant a portion of (living flesh or akin) in
      a lesion so as to form an organic union.
      [1913 Webster]

   3. To join (one thing) to another as if by grafting, so as to
      bring about a close union.
      [1913 Webster]

            And graft my love immortal on thy fame ! --Pope.
      [1913 Webster]

   4. (Naut.) To cover, as a ring bolt, block strap, splicing,
      etc., with a weaving of small cord or rope-yarns.
      [1913 Webster]

WordNet (r) 3.0 (2006):

grafting
    n 1: the act of grafting something onto something else [syn:
         graft, grafting]

Moby Thesaurus II by Grady Ward, 1.0:

21 Moby Thesaurus words for "grafting":
   embedment, entrance, graft, impaction, impactment, implantation,
   infixion, infusion, injection, inoculation, insertion, insinuation,
   interjection, interpolation, introduction, intromission,
   penetration, perfusion, tessellation, transplant,
   transplantation