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tendinitis

American

[ten-duh-nahy-tis] / ˌtɛn dəˈnaɪ tɪs /

Also tendonitis,

noun

Pathology.

inflammation of a tendon.

tendinitis British

/ ˌtɛndəˈnaɪtɪs /

noun

inflammation of a tendon

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of tendinitis

1895–1900; < New Latin tendin- ( tendinous ) + -itis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In a nod to her age and the fact that she’s still growing, Brewer sometimes gets tendinitis in her knees.

From Los Angeles Times • Nov. 14, 2025

“I’ve been dealing with patella tendinitis the entire season but over the weeks the pain has decreased,” Webster said.

From Los Angeles Times • May 24, 2025

"It's important for me to get my training load back up again and get this tendinitis sorted so I can be consistent with everything I'm doing again."

From BBC • Jan. 19, 2025

"Essentially I had tendinitis in my hip, which I had to get an MRI to look at," he said.

From BBC • Jan. 19, 2025

As in: I wonder why my dad never had surgery on his patellar tendinitis.

From "The Crossover" by Kwame Alexander

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023