Synonyms for Sunray (same or very similar meaning)
WordNet sense 1 (herb having a basal cluster of grey-green leaves and leafless stalks each with a solitary broad yellow flower head; desert areas Idaho to Arizona):
Enceliopsis nudicaulisWordNet sense 2 (a ray of artificial ultraviolet light from a sunray lamp):
sun-rayWordNet sense 3 (a ray of sunlight):
sunbeamFrom the ODE community, based on WordNetadd/edit