Wordiyo

lumen

🇬🇧 UK/'lu:min/🇺🇸 US
GREC2

Definitions

n.

The SI unit of luminous flux (symbol: lm); also, the inner cavity of a tube or tubular organ in the body

流明（光通量单位）；（管状器官的）腔

🧩 Root Breakdown

Loanword
lumenother
=lumen

Common Collocations

  • 1.[brightness/brightness] in lumens[亮度/亮度]以流明为单位
  • 2.[blood vessel] lumen[血管]管腔

Example Sentences

  • 1.

    A standard light bulb produces about 800 lumens.

  • 2.

    The lumen of the blood vessel narrowed over time.

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