lumen lumen  /ˈlu mən/


  1. (n) 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
  2. (n) a cavity or passage in a tubular organ


  1. Fecal matter sometimes slips from the caecum into its narrow opening, or lumen, putrifies there and causes the various forms of appendicitis.
  2. No fluid oozed through the needle's lumen.
  3. In from six to ten days, the embryos are discharged from the uterus of the female worm into the lumen passageway of the intestine or into the lymphatics of the intestinal wall.


  1. Savor the light at LUMEN Saturday at Lyons Pool on Staten Island

    View full sizeLUMEN 2013 The 4th Annual International Video & Performance Festival Where: Lyon's Pool, 6 Victory Blvd., Tompkinsville; 718-816-9571. When: June 15, 6 p.m.-midnight. How much: Admission is free. More information: Check out "Migration of the Antropods" by...
    on June 15, 2013     Source: Staten Island Advance

  2. Division 3 boys golf: Lansing Catholic, Almain the hunt for state title

    BEDFORD — Lansing Catholic and Alma will be chasing a Division 3 state championship today in boys golf, but they’ll have to run down Jackson Lumen Christi to get it.
    on June 15, 2013     Source: Eaton Rapids Community News

  3. Lumen Christi High School class of 2013 top graduates announced

    Lumen Christi High School announces class of 2013 top graduates.
    on June 11, 2013     Source: The Jackson Citizen Patriot


  1. "Real LED-based lighting application replacements for existing light sources must be direct lighting replacement solutions - lumen for lumen and LUX for LUX, plus offer the benefits of energy savings and reduced maintenance cost," stated Ron...
    on Jan 29, 2008 By: Ron Russell Source: Business Wire (press release)

  2. "But precisely this is her joy, which no one can take away: to be the 'sign and instrument' of he who is 'lumen gentium,' light for the peoples," Benedict XVI explained.
    on Jan 7, 2009 By: Pope Benedict XVI Source: Zenit News Agency

Word of the Day
infatuated infatuated
/ɪn ˈfæ tʃu ˌeɪ tɪd /