ray

Dictionary definition · ray

a column of light (as from a beacon)
a branch of an umbel or an umbelliform inflorescence
(mathematics) a straight line extending from a point
a group of nearly parallel lines of electromagnetic radiation
the syllable naming the second (supertonic) note of any major scale in solmization
any of the stiff bony spines in the fin of a fish
cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins

emit as rays"That tower rays a laser beam for miles across the sky"
extend or spread outward from a center or focus or inward towards a center"spokes radiate from the hub of the wheel"
expose to radiation"irradiate food"

Source: Open English WordNet (CC BY 4.0).