‖n.; pl.Exanthemata [ L., fr. Gr.&unr_;, fr.&unr_; to burst forth as flowers, break out, as ulcers; &unr_;, &unr_;, out + 'anqei^n to bloom, 'a`nqos flower: cf. F. exanthème. ] (Med.) An efflorescence or discoloration of the skin; an eruption or breaking out, as in measles, smallpox, scarlatina, and the like diseases; -- sometimes limited to eruptions attended with fever. Dunglison.
(n) a viral disease of infants and young children; characterized by abrupt high fever and mild sore throat; a few days later there is a faint pinkish rash that lasts for a few hours to a few days, Syn. roseola infantilis, roseola infantum, pseudorubella