A cavity or space within a tube or sac.
A hollow fibre
The cavity or channel within a tube or tubular organ.
Latin, meaning: light, lamp, lantern / light of day / the eye / clearness / understanding. Found on http://archives.nd.edu/lll.htm
(Latin) light, light of day.Found on http://www.hestories.info/greco-roman-world-glossary.html
In nematodes: Triradiate canal or duct of the esophagus. In fungi: The space bounded by tissue or wall, as the central cavity of a cell. Found on http://ppathw3.cals.cornell.edu/glossary/Defs_L.htm
Measurement of 'candle power' or light output, a unit of light falling on a surface.
Found on http://www.peterashbyhayter.co.uk/glossaryT-Z.html
- 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 organFound on http://www.webdictionary.co.uk/definition.php?query=lumen
The derived SI unit of luminous flux, defined as the luminous flux emitted by a uniform point source of 1 candela [cd] emitting its luminous energy over a solid angle of 1 steradian [sr]; it thus has units of cd sr. The lumen is often abbreviated to lm. See also: Illuminance.Found on http://www.diracdelta.co.uk/science/source/l/u/lumen/source.html
Lumen (lm) is the SI derived unit of luminous flux. The lumen is the luminous flux emitted in a solid angle of one steradian by a point source having a uniform intensity of one candela (1lm =1 cd·sr).Found on http://www.ktf-split.hr/periodni/en/abc/l.html
A cavity in a tubular organ.
Found on http://www.gadsbywicks.co.uk/uploaded/3822.pdf
Lumen: A luminous term referring to the channel within a tube such as a blood vessel or to the cavity within a hollow organ such as the intestine. Lumen is a luminous term because it is Latin for light, including the light that comes through a window. When a hollow organ is cut across, you can see light through the space that has been opened. So th...Found on http://www.medterms.com/script/main/art.asp?articlekey=20106
A measure of the amount of light available from a light source equivalent to the light emitted by one candle.Found on http://www.neo.ne.gov/statshtml/glossaryl.htm
; plural Latin Lumina
, English Lumens
. [ Latin , light, an opening for light.] 1. (Photom.) (a)
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...Found on http://www.encyclo.co.uk/webster/L/68
<anatomy> The cavity or channel within a tube or tubular organ. ... (18 Nov 1997) ... Found on http://www.encyclo.co.uk/local/20973
a cavity or passage in a tubular organ; `the lumen of the intestine`Found on http://wordnetweb.princeton.edu/perl/webwn?s=lumen
(loo´mәn) Latin word meaning light. In anatomy, it is to denote the cavity or channel within a tube or tubular organ, such as a blood vessel or the intestine. the SI unit of rate of flow of radiant energy, specifically that of visible light. adj., lu´minal., adj.Found on http://www.encyclo.co.uk/local/21001
• (n.) A unit of light flux, being the flux through one square meter of surface the illumination of which is uniform and of unit brightness. • (n.) An opening, space, or cavity, esp. a tubular cavity; a vacuole. • (n.) A unit of illumination, being the amount of illumination of a unit area of spherical surface, due to a light of unit...Found on http://thinkexist.com/dictionary/meaning/lumen/
(from the article `respiration, human`) ...and the prominence more marked in men than in women, which has given this structure the common name of Adam`s apple. Behind the shieldlike thyroid ...Found on http://www.britannica.com/eb/a-z/l/83
unit of luminous flux, or amount of light, defined as the amount streaming outward through one steradian (a unit of solid angle, part of the volume ... [2 related articles]Found on http://www.britannica.com/eb/a-z/l/83
(L. 'light') the cavity or channel within a tube or tubular organ.Found on http://users.ugent.be/~rvdstich/eugloss/DIC/dictio51.html
lumen (s); lumina (pl) 1. In physics, the SI unit of luminous flux, equal to the amount of light crossing a unit area at a unit distance from a light source of luminous intensity of one candela. Symbol lm. 2. In anatomy, the space inside any tubular structure in the body, e.g., an intestine, artery, or vein. 3. In botany, the cavity wi...Found on http://www.wordinfo.info/words/index/info/view_unit/1212/4
Standard unit of measure for light flux or light energy. Lamp light output is measured in Lumens.Found on http://www.youngco.com/young2.asp?ID=4&Type=3
The hollow area within a tube, such as a blood vessel.Found on https://www.texasheart.org/heart-health/heart-information-center/topics/a-z
The inner channel of a vessel.Found on https://www.krh.org/krmc/services/cardiovascular-care/glossary-of-cardiovas
No exact match found