Definition of erythema in English:

Share this entry


Pronunciation: /ˌerəˈTHēmə/


Superficial reddening of the skin, usually in patches, as a result of injury or irritation causing dilatation of the blood capillaries.
Example sentences
  • Local irritation, erythema, ulceration, and tenderness were common reactions.
  • Early application of topical steroids is useful to limit erythema and pruritus.
  • The only adverse effects of therapy were transient skin erythema and local hair loss in three irradiated patients.



Pronunciation: /-məl/
Example sentences
  • Clinical studies have shown no difference in the erythemal response to ultraviolet radiation between children and adults.
  • A depletion of the ozone column by 25% could increase the erythemal exposure of field scientists or indigenous arctic people by approximately 40% during the spring.
  • At 24 hours after irradiation, sites were visually assessed to determine the minimal erythemal dose, i.e. the lowest dose at which erythema was perceptible.


Pronunciation: /-ˈTHemətəs/ /-ˈTHēmətəs/
Example sentences
  • Seborrheic dermatitis causes scaly erythematous skin lesions most often found in nasolabial folds and eyebrow areas.
  • Infections such as mastitis and cellulitis tend to be erythematous, tender, and warm to the touch; they may be more circumscribed if an abscess has formed.
  • Thrush and erythematous candidiasis are common in patients with immune defects and are often an early manifestation of the immunodeficiency.


Late 18th century: from Greek eruthēma, from eruthainein 'be red', from eruthros 'red'.

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.