Lumen

nounid 83652·updated May 18, 2026
verified

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

Sensitivity

unclassified

Information Class

unclassified

Variants

synonym
lm
plural
Lumens
possessive
Lumen's
pluralpossessive
Lumens'

Framework definitions

Wordset Dictionary2 sensesview framework →
§1
a cavity or passage in a tubular organ
§2
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

Outgoing relationships

No outgoing triples
This term is not the subject of any RDF-style relationship yet.

Incoming relationships

No incoming triples
No other term currently asserts a relationship to this one.