1. (

• sunbeam ,
• sunray

) a ray of sunlight ;

2. (

• sunray ,
• Enceliopsis_nudicaulis

) 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 ;

3. (

• sunray ,
• sun-ray ,

) a ray of artificial ultraviolet light from a sunray lamp ;