Lumen

Lumen can mean:

  • Lumen (unit), the SI unit of luminous flux
  • Lumen (anatomy), the cavity or channel within a tubular structure
  • Thylakoid lumen, the inner membrane space of the chloroplast
  • Phenobarbital (trade name)
  • 141 Lumen, an asteroid discovered by the French astronomer Paul Henry in 1875
  • Lumen (band), Russian alternative rock band
  • Lumen Pierce, a fictional character played by Julia Stiles from the television series Dexter
  • Lumen (branding agency), a design and branding company headquartered in Milan, Italy
  • USS Lumen (AKA-30), a US Navy ship