lumen definition

  • noun:
    • Anatomy The inner open space or hole of a tubular organ, at the time of a blood vessel or an intestine.
    • Physics the machine of luminous flux when you look at the Overseas program, add up to the amount of light given out through a solid position by a source of 1 candela power radiating equally in all directions. See Table at measurement.
    • Botany The hole bounded by a plant mobile wall surface.
    • into the Overseas System of Units, the derived unit of luminous flux; the light that's emitted in an excellent position of one steradian from a source of just one candela. Representation: lm.
    • The hole or channel within a tube or tubular organ.
    • The hole bounded by a plant cell wall surface.
    • The bore of a tube including a hollow needle or catheter.
    • A unit of lighting, becoming the quantity of illumination of a unit area of spherical area, because a light of product power placed within center for the world.
    • A unit of light flux, becoming the flux through one square meter of surface the illumination that is consistent as well as unit brightness.
    • An opening, area, or hole, esp. a tubular hole; a vacuole.
    • An opening or passageway, since, in structure, of a hollow tubular organ: as, the lumen associated with intestine or of a blood-vessel.
    • In botany, the internal hole, or area within the wall, of a cell.
    • the system of flux of light; the flux of light in a beam subtending device solid angle where in actuality the resource has an intensity of 1 hefner. See illumination, 1, and light flux.
    • The hollow tube of an operating-needle or of a hypodermic syringe.
    • a cavity or passageway in a tubular organ
    • a unit of luminous flux add up to the actual quantity of light provided through an excellent angle of just one steradian by a point way to obtain 1 candela intensity radiating consistently in all directions

Related Sources

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