Definition of therion:
(N) :
(formerly Blitzkrieg) a Swedish symphonic metal band founded by Christofer Johnsson in 1987.
(N) :
(thēríon) (beast) a deity found in the mystical system of Thelema, which was established in 1904 with Aleister Crowley's writing of The Book of the Law.
(N) :
free and open-source cave surveying software designed to process survey data, generate maps and 3D models of caves, and archive- the data describing the cave and the history of exploration.
(N) :
a genus of ichneumon wasps in the family Ichneumonidae.