How to Pronounce "lumen"
word
ˈɫumən
LOO-muhn
lˈuːmɛn
LOO-men
Definition
A lumen is a unit used to measure the amount of visible light produced by a source, such as a bulb. In biology, 'lumen' also refers to the inside space of a tube, like a blood vessel or an intestine.
IPA Transcription
American English
ˈɫumən
British English
lˈuːmɛn
Simplified Pronunciation
US
LOO-muhn
UK
LOO-men
Listen in Context
This bulb gives off 800 lumens of light.
We learned about the lumen of the intestine in science class.
A flashlight with more lumens is brighter.
If you want a brighter room, check the lumens on the package before buying a bulb.