1. (

• beam ,
• beam_of_light ,
• light_beam ,
• ray ,
• ray_of_light ,
• shaft ,
• shaft_of_light ,
• irradiation

) a column of light (as from a beacon) ;

2. (

• ray

) a branch of an umbel or an umbelliform inflorescence ;

3. (

• ray

) (mathematics) a straight line extending from a point ;

4. (

• beam ,
• ray ,
• electron_beam

) a group of nearly parallel lines of electromagnetic radiation ;

5. (

• re ,
• ray

) the syllable naming the second (supertonic) note of any major scale in solmization ;

6. (

• ray ,

) any of the stiff bony spines in the fin of a fish ;

7. (

• ray

) cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins ;

1. (

• ray

) emit as rays; "That tower rays a laser beam for miles across the sky" ;

2. (

• radiate ,
• ray

) extend or spread outward from a center or focus or inward towards a center; "spokes radiate from the hub of the wheel"; "This plants radiate spines in all directions" ;

3. (

• irradiate ,
• ray ,

) expose to radiation; "irradiate food" ;