'Siriasis' definitions:

Definition of 'siriasis'

(from WordNet)
noun
Sudden prostration due to exposure to the sun or excessive heat [syn: sunstroke, insolation, thermic fever, siriasis]

Definition of 'Siriasis'

From: GCIDE
  • Siriasis \Si*ri"a*sis\, n. [L., fr. Gr. ???, fr. ??? the Dog Star, properly, scorching.] (Med.) (a) A sunstroke. (b) The act of exposing to a sun bath. [Obs.] Cf. Insolation. [1913 Webster]