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cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins any of the stiff bony rods in the fin of a fish a branch of an umbel or an umbelliform inflorescence (mathematics) a straight line extending from a point emit as rays; "That tower rays a laser beam for miles across the sky" the syllable naming the second (supertonic) note of any major scale in solmization a group of nearly parallel lines of electromagnetic radiation expose to radiation; "irradiate food" extend or spread outward from a center or focus or inward towards a center; "spokes radiate from the hub of the wheel"; "This plants radiates spines in all directions" a column of light (as from a beacon) |
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