Meaning & Definition of Lumen in English

Detailed Definitions

• Definition: A measure of the total amount of visible light emitted by a source per unit of time.

  Example Sentence: The lamp emits 800 lumens, which is sufficient to illuminate the room.

• Definition: The inner open space of a tubular structure, such as a blood vessel or a pipe.

  Example Sentence: The lumen of the artery was narrowed due to plaque buildup.

Etymology

Origin: From Latin lumen, meaning 'light' or 'glow.'

Synonyms

Common Phrases and Expressions

• lumen per watt: A measure of the efficiency of a light source.
• in the lumen: Referring to being well-lit or illuminated.

Translations

• Spanish: lumen

• French: lumen

• German: Lumen

• Russian: лумен

Related Words

• luminous: Emitting or reflecting light; glowing.

• luminance: The intensity of light emitted from a surface per unit area.

Slang Meanings of lumen

• Meaning: A casual term for a bright light source.

  Example Sentence: That new LED bulb is a total lumen bomb!

• Meaning: Used informally to refer to something that is extremely bright or eye-catching.

  Example Sentence: That car's headlights are lumen city; they light up the whole road!