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