ルーメン

Japanese

Etymology

Borrowed from English lumen,[1][2][3][4][5] from French lumen, from Latin lūmen (“light”)

Pronunciation

Noun

ルーメン (rōmaji rūmen)

  1. (physics) lumen (SI-unit for luminous flux)
  1. (anatomy) a lumen (cavity within tubular organ)

References
  1. 1988, 国語大辞典（新装版） (Kokugo Dai Jiten, Revised Edition) (in Japanese), Tōkyō: Shogakukan
  2. 1995, 大辞泉 (Daijisen) (in Japanese), Tōkyō: Shogakukan, →ISBN
  3. 1998, 広辞苑 (Kōjien), Fifth Edition (in Japanese), Tōkyō: Iwanami Shoten, →ISBN
  4. 2006, 大辞林 (Daijirin), Third Edition (in Japanese), Tōkyō: Sanseidō, →ISBN
  5. 1997, 新明解国語辞典 (Shin Meikai Kokugo Jiten), Fifth Edition (in Japanese), Tōkyō: Sanseidō, →ISBN
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