lam·​i·​ni·​tis | \ ˌla-mə-ˈnī-təs How to pronounce laminitis (audio) \

Definition of laminitis

: inflammation of the laminae especially in the hoof of a horse

called also founder

Examples of laminitis in a Sentence

Recent Examples on the Web Tootsie Roll was diagnosed with laminitis, an inflammation and damage of the tissue between the hoof and an underlying bone. San Diego Union-Tribune, 22 Oct. 2021 Barbaro, the 2006 Kentucky Derby winner, died from laminitis following his breakdown at the Preakness Stakes. Jeff Goertzen, The Mercury News, 30 June 2019 When a leg is broken, the horse shifts its weight on the other three legs, which inflames the hoofs, causing laminitis. Jeff Goertzen, The Mercury News, 30 June 2019 Despite successful surgery, Barbaro contracted laminitis, a progressive hoof disease, and had to be euthanized the following January. David Anderson, The Aegis, 22 Jan. 2018 Chenery was also a strong advocate in the fight against performance-enhancing drugs in racing and was intent on finding a cure for laminitis. Editors, USA TODAY, 12 Dec. 2017 Copper has a severe case of laminitis, a crippling hoof disease, and was a kill pen save. Denise Coffey, Courant Community, 19 Sep. 2017 The laminae is like a shock absorber in the foot and any inflammation can be painful and cause a horse to favor another foot, which can lead to weight-bearing laminitis. John Cherwa,, 19 Oct. 2017 Copper is a chestnut appaloosa gelding with severe laminitis. Denise Coffey, Courant Community, 19 Sep. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'laminitis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of laminitis

1843, in the meaning defined above

History and Etymology for laminitis

New Latin

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The first known use of laminitis was in 1843

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Cite this Entry

“Laminitis.” Dictionary, Merriam-Webster, Accessed 27 Jan. 2022.

Style: MLA
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More Definitions for laminitis


lam·​i·​ni·​tis | \ ˌlam-ə-ˈnīt-əs How to pronounce laminitis (audio) \

Medical Definition of laminitis

: inflammation of a lamina especially in the hoof of a horse, cow, or goat that is typically caused by excessive ingestion of a dietary substance (as carbohydrate)

called also founder


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