lumen

名詞

1. 1

   流明

   This desk lamp puts out about eight hundred lumens at full brightness.

   這盞檯燈在最亮時約可輸出八百流明。

2. 2

   管腔、腔醫學

   Plaque had narrowed the lumen of the artery considerably.

   斑塊已使動脈的管腔明顯變窄。