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lumina
We have found lemma(root) word of lumina : lumen.
Definitions
[ˈl(j)uːmɛn], (Noun)
Definitions:
- the SI unit of luminous flux, equal to the amount of light emitted per second in a unit solid angle of one steradian from a uniform source of one candela
Phrases:
Origin
:
late 19th century: from Latin, literally ‘light’
[ˈl(j)uːmɛn], (Noun)
Definitions:
- the central cavity of a tubular or other hollow structure in an organism or cell
(e.g: the stomach empties food into the lumen of the small intestine)
Phrases:
Origin
:
late 19th century: from Latin, literally ‘opening’
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definition by Oxford Dictionaries