‖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.

{ } a. Of, relating to, or characterized by, exanthema; efflorescent; as, an exanthematous eruption. [ 1913 Webster ]