This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. Redness of the skin caused by dilatation and congestion of the capillaries, often a sign of inflammation or infection.

n. Abnormal redness and inflammation of the skin, due to vasodilation.

n. Skin redness from sunburn or chemical irritation

n. A disease of the skin, in which a diffused inflammation forms rose-colored patches of variable size.

n. A superficial redness of some portion of the skin; specifically, in pathology, such a redness, varying in extent and form, which may be attended with more general disorder.

n. abnormal redness of the skin resulting from dilation of blood vessels (as in sunburn or inflammation)

"Crocker remarks that they are generally classified as erythema gangrænosurn, and are always to be regarded with grave suspicion of being self-induced."

erythroderma   

erythrophobia    erythrocyte    erythronium   

sunburn    erythema solare    hickey    erythema nodosum    windburn    love bite    erythema multiforme   

erythema migrans   

toxicum    glioblastoma    dermatitis    enlargement/tenderness    glaucoma    ringworm    leishmaniasis    melanoma    overheat    anorexia