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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

  hypernym	elasmobranchselachian
  hyponym	crampfishdevilfisheagle rayelectric rayguitarfishmantamanta raynumbfishsawfishskatestingraytorpedo

• any of the stiff bony spines in the fin of a fish

  holo part	fin
  hypernym	spine

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

  synonym	re
  hypernym	solfa syllable

• a column of light (as from a beacon)

  synonym	beambeam of lightirradiationlight beamray of lightshaftshaft of light
  hypernym	lightvisible lightvisible radiation
  hyponym	heat rayhigh beamlaser beamlow beammoon raymoon-raymoonbeamsunbeamsunray

• a group of nearly parallel lines of electromagnetic radiation

  synonym	beamelectron beam
  hypernym	electromagnetic radiationelectromagnetic wavenonparticulate radiation
  hyponym	cathode rayparticle beam

• a branch of an umbel or an umbelliform inflorescence

  hypernym

  pedicelpedicle

• (mathematics) a straight line extending from a point

  domain topic	mathmathematicsmaths
  hypernym	vector

• expose to radiation

  synonym	irradiate
  hypernym	processtreat
  hyponym	bombard

• extend or spread outward from a center or focus or inward towards a center

  synonym	radiate
  hypernym	extendgoleadpassrun

• emit as rays

  hypernym

  emitgive offgive out