лю́мен — meaning in English
lyumen
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English meaning
- lumen noun The standard unit for measuring the total amount of visible light emitted by a source.
Senses
лю́мен is used for these senses in English:
- lumen (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.
lumen — full definition
- noun The standard unit for measuring the total amount of visible light emitted by a source.
- noun The hollow space inside a tube or tubular body part, such as a blood vessel or needle.