Ray·on·ism 
(rāə-nĭz′əm)
(rāə-nĭz′əm)n.
A style of abstract painting allied to futurism, developed about 1911, in which forms are depicted as emitting rays of light.
[French rayonisme, from rayon, ray (translation of Russian luchizm, from luch, ray); see RAYON.]
Rayon·ist adj. & n.
Ray′on·istic adj.