The Collaborative International Dictionary of English v.0.48:

Implant \Im*plant"\v. t. [imp. & p. p. Implanted; p. pr. & vb.
   n. Implanting.] [Pref. im- in + plant: cf. F. implanter.]
   To plant, or infix, for the purpose of growth; to fix deeply;
   to instill; to inculate; to introduce; as, to implant the
   seeds of virtue, or the principles of knowledge, in the minds
   of youth.
   [1913 Webster]

         Minds well implanted with solid . . . breeding.
                                                  --Milton.
   [1913 Webster]

WordNet (r) 3.0 (2006):

implant
    n 1: a prosthesis placed permanently in tissue
    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: become attached to and embedded in the uterus; "The egg
       fertilized in vitro implanted in the uterus of the birth
       mother with no further complications"
    3: put firmly in the mind; "Plant a thought in the students'
       minds" [syn: plant, implant]

Moby Thesaurus II by Grady Ward, 1.0:

108 Moby Thesaurus words for "implant":
   beat into, bed, brainwash, broadcast, bud, catechize, condition,
   confirm, deep-dye, define, dibble, disseminate, drag in, drill,
   edge in, embed, engraft, engrave, entrench, establish, etch,
   fit in, fix, foist in, forest, found, fudge in, graft, ground,
   imbue, imp, impact, implant in, impregnate, impress, imprint,
   inarch, inculcate, indoctrinate, infix, infuse, ingrain, inject,
   inject in, inlay, inoculate, inscribe, inseminate, insert,
   insert in, insinuate, insinuate in, inspire, instill, intercalate,
   interjaculate, interject, interpolate, interpose, intervene,
   introduce, introduce in, intrude, jam, leaven, lodge, lug in, pack,
   penetrate, permeate, pervade, plant, pot, print, program,
   put between, put in, reforest, reset, retimber, root, run in,
   sandwich, saturate, scatter seed, scion, seat, seed, seed down,
   seminate, set, set in, settle, smuggle in, sow, sow broadcast,
   squeeze in, stamp, stereotype, teach, tessellate, throw in,
   thrust in, transplant, wedge, wedge in, work in, worm in