The Collaborative International Dictionary of English v.0.48:

Embed \Em*bed"\ ([e^]m*b[e^]d"), v. t. [imp. & p. p. Embedded;
   p. pr. & vb. n. Embedding.] [Pref. em- + bed. Cf. Imbed.]
   To lay as in a bed; to lay in surrounding matter; to bed; as,
   to embed a thing in clay, mortar, or sand.
   [1913 Webster]

WordNet (r) 3.0 (2006):

embed
    v 1: fix or set securely or deeply; "He planted a knee in the
         back of his opponent"; "The dentist implanted a tooth in
         the gum" [syn: implant, engraft, embed, imbed,
         plant]
    2: attach to, as a journalist to a military unit when reporting
       on a war; "The young reporter was embedded with the Third
       Division"

Moby Thesaurus II by Grady Ward, 1.0:

44 Moby Thesaurus words for "embed":
   bed, bed in, comprise, confirm, contain, deep-dye, define, enclose,
   enfold, engraft, engrave, entrench, establish, etch, fix, found,
   ground, impact, implant, impress, imprint, include, infix, ingrain,
   inlay, inscribe, inset, internalize, jam, keep within, lodge, pack,
   plant, print, put in, root, seat, set, set in, settle, stamp,
   stereotype, surround, wedge