Definition of "limbus" [limbus]

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

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The word comes from the Latin word "limbus", meaning the edge."
• "The real action takes place when the image is downloaded to the computer: sophisticated software isolates the circular area around the iris called the limbus, where a film of tear fluid over the cornea reflects the world like a clear midsummer lake."
• "In the New Testament, Christ refers by various names and figures to the place or state which Catholic tradition has agreed to call the limbus patrum."