Lexic.us

Definition of Lumen

1. 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.

2. Noun. A cavity or passage in a tubular organ. "The lumen of the intestine"

Definition of Lumen

1. n. A unit of illumination, being the amount of illumination of a unit area of spherical surface, due to a light of unit intensity placed at the center of the sphere.

Definition of Lumen

1. Noun. (physics) In the International System of Units, the derived unit of luminous flux; the amount of light that falls on a unit area at unit distance from a source of one candela. Symbol: lm. ¹

2. Noun. (anatomy) The cavity or channel within a tube or tubular organ. ¹

3. Noun. (botany) The cavity bounded by a plant cell wall. ¹

4. Noun. (medicine) The bore of a tube such as a hollow needle or catheter. ¹

¹ Source: wiktionary.com

Definition of Lumen

1. the inner passage of a tubular organ [n -MENS or -MINA] : LUMENAL, LUMINAL [adj]

Medical Definition of Lumen

1. The cavity or channel within a tube or tubular organ. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Lumen

lumbricalis lumbricals lumbrici lumbricidal lumbricide lumbriciform lumbricine lumbricines lumbricoid lumbricosis

lumbrics lumbricus lumbrokinase lumbus lumefantrine lumen (current term) lumenal lumened lumens lumic

lumican lumichrome lumicolchicine lumicolchicines lumicrine lumiflavin lumiliximab lumina lumina gold luminaire

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