from The American Heritage® Dictionary of the English Language, 5th Edition.

  • abbreviation lumen

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Symbol for the lumen, the SI unit of luminous flux.
  • noun informal A Roman numeral representing nine hundred and fifty (950).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions


Sorry, no etymologies found.



Log in or sign up to get involved in the conversation. It's quick and easy.