Lumen

nounverified·updated May 18, 2026

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

polysemous

Classifications

Entity Type

Unknownauthoritativeglossary_import_default_pending_classifier
?unassignedlast reviewed

Sensitivity

unclassified

Information Class

unclassified

Variants

synonym
lm
plural
Lumens
possessive
Lumen's
pluralpossessive
Lumens'