Ro-sō'-lō-lā, n.

n. [N. Lat., dim. of Lat. rosa, a rose; Fr. roséole.] (Med.) A cutaneous disease, consisting of a rose-colored efflorescence, in circumscribed patches with little or no elevation, often alternately fading and reviving, sometimes with a colorless nucleus, chiefly on the cheeks, neck, and arms; — sometimes called rose-rash.