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

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, "The truth about horse racing deaths," 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, "Harford's Country Life Farm shows top stallions in an improving breeding market," 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, "2017: Remembering those we've lost through the year," 12 Dec. 2017 Copper has a severe case of laminitis, a crippling hoof disease, and was a kill pen save. Denise Coffey, Courant Community, "Working Small Miracles At Hay Burr Inn Equine Rescue," 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,, "Racing! Catching up on a boycott, an injury and a horse sticking around," 19 Oct. 2017 Copper is a chestnut appaloosa gelding with severe laminitis. Denise Coffey, Courant Community, "Working Small Miracles At Hay Burr Inn Equine Rescue," 19 Sep. 2017 The 7-year-old dark bay horse owned by Calumet Farm has won the Brazilian version of the Triple Crown and survived a bout with laminitis in his 25-race career. Ap, USA TODAY, "Stellar Wind edges Vale Dori in Beholder Mile at Santa Anita," 4 June 2017 In Australia, Holly had developed laminitis, a painful, potentially crippling inflammation of the tissues that connect the hoof to the foot bone. National Geographic, "Injured Animals Get Second Chance With 3-D Printed Limbs," 19 Aug. 2016

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.

See More

First Known Use of laminitis

1843, in the meaning defined above

History and Etymology for laminitis

New Latin

Keep scrolling for more

Learn More about laminitis

Statistics for laminitis

Last Updated

17 Jul 2019

Look-up Popularity

Time Traveler for laminitis

The first known use of laminitis was in 1843

See more words from the same year

Keep scrolling for more

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

Comments on laminitis

What made you want to look up laminitis? Please tell us where you read or heard it (including the quote, if possible).


to complain fretfully

Get Word of the Day daily email!

Test Your Vocabulary

What's that Smell?! Quiz

  • wide eyed dog smelling rose
  • Someone who is hircine smells like a:
Name That Thing

Test your visual vocabulary with our 10-question challenge!


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!