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lumen

Meaning in simple English, pronunciation and examples

Pronunciation: US /ˈlumən/ · UK /ˈluːmən/

lumen means: A unit used to measure the total amount of visible light a source gives out.

noun

LIGHT UNITB2

A unit used to measure the total amount of visible light a source gives out.

  • This lamp produces 800 lumens.
  • Compare the lumen ratings before buying a bulb.
  • How many lumens do we need for this room?

Common phrases: lumen output, lumen rating, one lumen

INNER ORGAN SPACEC2

The open space inside a tube-shaped organ, such as a blood vessel or the intestine.

  • Blood flows through the vessel's lumen.
  • Swelling narrowed the intestinal lumen.
  • The surgeon checked for a blockage inside the lumen.

Similar words: cavity, channel

Common phrases: arterial lumen, intestinal lumen, narrow lumen

INNER TUBE CHANNELC2

The hollow channel inside a tube, needle, or similar device.

  • The catheter has a narrow lumen.
  • A blockage stopped fluid passing through the needle's lumen.
  • Flush each lumen before connecting the tube.

Similar words: bore, channel

Common phrases: catheter lumen, needle lumen, single lumen

PLANT CELL SPACEC2

The space enclosed by the wall of a plant cell.

  • The cell has a wide lumen.
  • The microscope revealed the lumen inside each wood fiber.
  • Thicker cell walls leave less space in the lumen.

Similar words: cell cavity

Common phrases: cell lumen, fiber lumen, wide lumen

Questions about lumen

What does lumen mean?

A unit used to measure the total amount of visible light a source gives out.

What is lumen in other languages?

Türkçe: lümen · Español: lumen · Français: lumen · Deutsch: Lumen · Italiano: lumen · 日本語: ルーメン

How do you pronounce lumen?

In American English /ˈlumən/; in British English /ˈluːmən/.

How do you use lumen in a sentence?

This lamp produces 800 lumens. Compare the lumen ratings before buying a bulb.

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