from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Biology A distinctive border or edge, such as the junction between the cornea and sclera of the eyeball.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A border of an anatomical part, such as the edge of the cornea.

from The Century Dictionary and Cyclopedia

  • n. Same as limbo, 1.
  • n. Pl. limbi (-bī). In anatomy, a border.
  • n. In conchology, the circumference of the valves of a bivalve shell from the disk to the border or margin.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a border or edge of any of various body parts distinguished by color or structure


Latin, border.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin limbus ("edge, border") (Wiktionary)



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