(lu-men) 2 syllables

Definition

noun. the SI unit of luminous flux, equal to the amount of light emitted per second in a unit solid angle of one steradian from a uniform source of one candela.

Example Sentence

The lumen is a crucial measurement for determining the brightness of a light source.

More Example Sentences

When shopping for light bulbs, many people look at the lumen rating to ensure they get the desired brightness.

Synonyms

brightness; radiance; glow

Antonyms

darkness; dimness; shadow

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Rhymes

  • bumann
  • crewman
  • doman
  • duman
  • heuman
  • heumann
  • human
  • humann
  • lewman
  • looman
  • luman
  • lumen
  • neuman
  • neumann
  • newman
  • newmann
  • ruman
  • rumen
  • schuhmann
  • schuman
  • schumann
  • shuman
  • suman
  • thuman
  • thumann
  • tooman
  • truman
  • tuman
  • vrooman
  • youman

  • acumen
  • albumin
  • bitumen
  • illumine
  • inhuman
  • nonhuman
  • subhuman

  • superhuman