lumen meaning

lumen as a noun

1. 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

   Synonyms: lm

   Type of: luminous flux unit

2. a cavity or passage in a tubular organ
   • the lumen of the intestine

   Type of: cavity

How to pronounce lumen

lumen is pronounced /ˈlumən/ in American English. It has 2 syllables, with the stress on the first syllable.

Words that rhyme with lumen

• human
• inhuman
• rumen
• albumin
• subhuman
• cumin
• acumen
• bitumen
• crewman
• nonhuman
• superhuman