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
动词 ray:
emit as rays
extend or spread outward from a center or focus or inward towards a center
