birthmark

birthmark
    n 1: a blemish on the skin that is formed before birth [syn:
         {birthmark}, {nevus}]
    

Birthmark \Birth"mark`\, n.
   Some peculiar mark or blemish on the body at birth.
   [1913 Webster]

         Most part of this noble lineage carried upon their body
         for a natural birthmark, . . . a snake.  --Sir T.
                                                  North.
   [1913 Webster]
    

104 Moby Thesaurus words for "birthmark":
      blackhead, blaze, bleb, blemish, blister, blotch, brand, bulla,
      caste mark, character, check, checkmark, cicatrix, comedo, crack,
      crater, craze, cut, dapple, defacement, defect, deformation,
      deformity, discoloration, disfiguration, disfigurement, distortion,
      dot, earmark, engraving, fault, feature, flaw, fleck, flick,
      freckle, gash, graving, hack, hemangioma, hickey, jot, keloid,
      kink, lentigo, macula, mark, marking, milium, mole, mottle,
      needle scar, nevus, nick, notch, patch, pimple, pit, pock,
      pockmark, point, polka dot, port-wine mark, port-wine stain, prick,
      puncture, pustule, rift, scab, scar, scarification, score, scotch,
      scratch, scratching, sebaceous cyst, speck, speckle, splash, split,
      splotch, spot, stain, stigma, strawberry mark, sty, tattoo,
      tattoo mark, tick, tittle, track, trait, travail, twist, verruca,
      vesicle, wale, warp, wart, watermark, weal, welt, wen, whitehead