Sī-rĭ'a-sĭs, n.

n. [Lat., Gr. σειρίασις, from σειρίος, hot, scorching, the sun, the dog-star.] (Med.) (a.) A disease occasioned by the excessive heat of the sun; coup-de-soleil. (b.) Insolation or exposure to the sun for the purpose of rousing the vital forces. [Obs.] Dunglison.