[ er-uh-them-uh-tuhs, ‐thee-muh‐ ]

  1. abnormally inflamed or reddened: Clinical signs include the presence of dry, fissured lips and a coated, erythematous, and fissured tongue.

Origin of erythematous

First recorded in 1770–80; erythemat- (stem of erythema) + -ous
  • Rarely er·y·them·a·tic [er-uh-thi-mat-ik], /ˌɛr ə θɪˈmæt ɪk/, er·y·the·mal [er-uh-them-uhl, ‐thee-muhl], /ˌɛr əˈθɛm əl, ‐ˈθi məl/, er·y·the·mic [er-uh-them-ik, ‐thee-mik] /ˌɛr əˈθɛm ɪk, ‐ˈθi mɪk/ . Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023