: the marginal region of the cornea of the eye by which it is continuous with the sclera
Examples of limbus in a Sentence
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In the new study, the researchers took a small biopsy from the limbus of each patient’s healthy eye, then separated the stem cells from the rest of the biopsied tissue.
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Will Sullivan, Smithsonian Magazine, 23 Aug. 2023
These stem cells are from the limbus, a zone of tissue around the cornea that generates transparent cells that protect and heal the eye’s surface.
—Theresa Tamkins, NBC News, 18 Aug. 2023
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Will Sullivan, Smithsonian Magazine, 23 Aug. 2023
These stem cells are from the limbus, a zone of tissue around the cornea that generates transparent cells that protect and heal the eye’s surface.
—Theresa Tamkins, NBC News, 18 Aug. 2023
Cite this Entry
“Limbus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/limbus. Accessed 12 Jul. 2025.
Copy CitationMedical Definition
limbus
noun
lim·bus
ˈlim-bəs 
: a border distinguished by color or structure
especially
: the marginal region of the cornea of the eye by which it is continuous with the sclera
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