erythematosus

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UK/ˌɛɹɪˈθiːməˌtəʊsɪs/Canada, US/ˌɛɹɪˈθiməˌtoʊsɪs/Canada, US/ˌɛɹəˈθiməˌtoʊsɪs/Australia/ˌeɹɪˈθiːməˌtəʉsɪs/

noun

An eruption of red lesions.

Less commonScrabble 21

Meanings

noun
  1. medicineAn eruption of red lesions.

    Iberdomide, a cereblon modulator promoting degradation of the transcription factors Ikaros and Aiolos, which affect leukocyte development and autoimmunity, is being evaluated for the treatment of systemic lupus erythematosus (SLE).

    2022 March 17, Joan T. Merrill, Victoria P. Werth, Richard Furie et al., “Phase 2 Trial of Iberdomide in Systemic Lupus Erythematosus”, in The New England Journal of Medicine, volume 386, number 11, →DOI, page 1034

Origin

  1. Ancient Greekἐρύθημα“a redness or flush on the skin”
  2. Englisherythematosus

From Ancient Greek ἐρύθημα (erúthēma, “a redness or flush on the skin”), from ἐρυθρός (eruthrós, “red”).

Full word history & related roots →
Cite this entry
APA

erythematosus. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/erythematosus

MLA

“erythematosus.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/erythematosus. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “erythematosus,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/erythematosus.

Source: erythematosus on Wiktionary, CC BY-SA 4.0.