tendinitis
noun
ten·di·ni·tis
ˌten-də-ˈnī-təs 
variants
or tendonitis
: inflammation of a tendon typically associated with acute injury and usually accompanied by pain and swelling
Tendinitis in his right shoulder forced him to the sideline only a few plays into the game.—
Herm Weiskopf
Herm Weiskopf
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Tendinitis is often seen in active, healthy people who do something that requires repeated motion, including golfers and tennis players (especially those with improper form), carpenters, and violinists. It's usually treated by keeping the joint from moving, by means of a splint, cast, or bandage. If not dealt with in time, tendinitis can turn into the more serious tendinosis, or tendon degeneration.
Examples of tendinitis in a Sentence
She was diagnosed with tendinitis of the elbow.
I have tendinitis in my knee.
Recent Examples on the Web
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To start the season, the 28-year-old running back was dealing with bilateral Achilles tendinitis to begin the year.
—Evan Massey, MSNBC Newsweek, 30 May 2025
Briefly Michael Tonkin was diagnosed with biceps tendinitis after suffering a setback on his rehab assignment for a shoulder strain.
—Betsy Helfand, Twin Cities, 11 May 2025
After undergoing Tommy John surgery in 2021, then sustaining a season-ending elbow tendinitis injury last year, Glasnow looked to revamp his delivery.
—Jack Harris, Los Angeles Times, 29 Apr. 2025
The frequency of the reoccurrence of his elbow tendinitis, if the injury ultimately is not more severe, is concerning alone.
—Meghan Montemurro, Chicago Tribune, 12 Apr. 2025
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Evan Massey, MSNBC Newsweek, 30 May 2025
Briefly Michael Tonkin was diagnosed with biceps tendinitis after suffering a setback on his rehab assignment for a shoulder strain.
—Betsy Helfand, Twin Cities, 11 May 2025
After undergoing Tommy John surgery in 2021, then sustaining a season-ending elbow tendinitis injury last year, Glasnow looked to revamp his delivery.
—Jack Harris, Los Angeles Times, 29 Apr. 2025
The frequency of the reoccurrence of his elbow tendinitis, if the injury ultimately is not more severe, is concerning alone.
—Meghan Montemurro, Chicago Tribune, 12 Apr. 2025
See All Example Sentences for tendinitis
Cite this Entry
“Tendinitis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tendinitis. Accessed 27 Jul. 2025.
Copy CitationMedical Definition
tendinitis
noun
ten·di·ni·tis
variants
or tendonitis
: inflammation of a tendon typically associated with acute injury and usually accompanied by pain and swelling
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