stomatitis

noun

sto·​ma·​ti·​tis ˌstō-mə-ˈtī-təs 

plural stomatitides ˌstō-mə-ˈti-tə-ˌdēz  or stomatitises ˌstō-mə-ˈtī-tə-səz 

: any of numerous inflammatory diseases of the mouth

Examples of stomatitis in a Sentence

Recent Examples on the Web

This breakdown can cause stomatitis, which is inflammation of the mouth. — Brandi Jones, Health, 19 May 2026

This virus caused Otis to develop stomatitis, which is severe inflammation of the mouth and gum tissue around the teeth. — Alyce Collins, MSNBC Newsweek, 20 June 2025

Patients also frequently dealt with stomatitis – painful swelling and sores inside the mouth – as well as diarrhea, nausea and vomiting. — Christopher Lieu, The Conversation, 2 June 2026

The poster, Donna Munoz, told Newsweek that at that time, the feline suddenly stopped eating, and after a visit to the vet, he was diagnosed with stomatitis. — Dan Perry, Newsweek, 2 Mar. 2025

In addition to suffering from ailments like feline herpes and stomatitis, Pot Roast recently contracted the feline immunodeficiency virus (FIV). — Abigail Adams, PEOPLE.com, 17 Feb. 2022

Word History

Etymology

New Latin

First Known Use

1842, in the meaning defined above

Phrases Containing stomatitis

• vesicular stomatitis

Rhymes for stomatitis

• adenitis
• arteritis
• cervicitis
• cholangitis
• choroiditis
• decubitus
• dermatitis
• fasciitis
• gingivitis
• hepatitis
• iritis
• keratitis

Medical Definition

stomatitis

noun

sto·​ma·​ti·​tis ˌstō-mə-ˈtīt-əs 

plural stomatitides -ˈtit-ə-ˌdēz  or stomatitises -ˈtīt-ə-səz 

: any of numerous inflammatory diseases of the mouth see aphthous stomatitis, gangrenous stomatitis, mycotic stomatitis, vesicular stomatitis