كيف تنطق "lumen"
word
ˈɫumən
LOO-muhn
lˈuːmɛn
LOO-men
التعريف
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.
نسخ IPA
الإنجليزية الأمريكية
ˈɫumən
الإنجليزية البريطانية
lˈuːmɛn
نطق مبسط
أمريكي
LOO-muhn
بريطاني
LOO-men
استمع في السياق
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.