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Definition of "ray" []

  • A thin line or narrow beam of light or other radiant energy. (noun)
  • A graphic or other representation of such a line. (noun)
  • Radiance; light. (noun)
  • A small amount; a trace: not a ray of hope left. (noun)
  • Mathematics A straight line extending from a point. Also called half-line. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "ray" in a sentence
  • ""The term ray is a misnomer, as cosmic particles arrive individually, not in the form of a ray or beam of particles.""
  • "The Blu-ray is gorgeous though, in widescreen (1.78: 1) and in DTS 5.1 HD, along with the original Dolby surround."
  • "To Be or Not to Be on Blu-ray is widescreen (1.85: 1) with both DTS-HD 5.1 and the original 2.0 stereo audio."