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erythematous

American  
[er-uh-them-uh-tuhs, ‑-thee-muh‑] / ˌɛr əˈθɛm ə təs, ‑ˈθi mə‑ /
Rarely erythematic

adjective

Pathology.
  1. abnormally inflamed or reddened.

    Clinical signs include the presence of dry, fissured lips and a coated, erythematous, and fissured tongue.


Etymology

Origin of erythematous

First recorded in 1770–80; erythemat- (stem of erythema ( def. ) ) + -ous ( def. )