TOP

Definition of lumen noun from the Oxford Advanced Learner's Dictionary

lumen

noun
 
/ˈluːmɪn/
 
/ˈluːmɪn/
(abbreviation lm)
(physics)
jump to other results
  1. a unit for measuring the rate of flow of light
    Word Originlate 19th cent.: from Latin, literally ‘light’.
See lumen in the Oxford Advanced American Dictionary
Check pronunciation: lumen

Nearby words

influence
verb
 
 
From the Word list
OPAL spoken words
Oxford Learner's Dictionaries Word of the Day