Checking saved dictionary data and trusted language sources. This will stop automatically if a source does not respond.
/ˈluːmən/ · noun
(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..
Use lumen when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Lumen means (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..
Common synonyms include lm.
The opposite depends on the specific sense.
Use lumen where its definition matches the intended context.
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.