Lumen
Definition & Meaning
Pronunciation /ˈluːmən/ · Part of speech noun
Quick meaning: Lumen is a noun meaning (anatomy) The cavity or channel within a tube or tubular organ.
Meaning
(anatomy) The cavity or channel within a tube or tubular organ.
More Meanings
- (botany) The cavity bounded by a plant cell wall.
- (medicine) The bore of a tube such as a hollow needle or catheter.
- (physics) In the International System of Units, the derived unit of luminous flux; the light that is emitted in a solid angle of one steradian from a source of one candela. Symbol: lm.
Word Forms
- lumens
- lumina
Related Words
Related dictionary entries include light, sunlight, spotlight, daylight, luminous, bright.
Related Dictionary Tools
Sources & Attribution
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
Dictionary data is provided by FreeDictionaryAPI.com and sourced from Wiktionary under its stated license.