lumen
In the International System of Units, the derived unit of luminous fluxIn 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.
» I hoped you could hurl some lumens into the gloom.
Meaning
4 sensesIn 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.
Lumen
лю́менljúmen
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
The cavity or channel within a tube or tubular organ.
a cavity or passage in a tubular organ
The cavity bounded by a plant cell wall.
по́лостьpólostʹ
The bore of a tube such as a hollow needle or catheter.
Examples
1 sentencesI hoped you could hurl some lumens into the gloom.
Translations
5 languagesBy meaning 2
By meaning 1
Origin
Borrowed from Latin lūmen (“light, an opening”). Use as a unit was first adopted by FrenchBorrowed from Latin lūmen (“light, an opening”). Use as a unit was first adopted by French physicist André Blondel in 1894.
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Forms
plural: lumens / luminaSynonyms
1 synonyms- 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:lm
Word family
17 related wordsLessons for this word
1 lessons- A1Plural nouns — Because its plural is irregular