How to Use "lumen" with Example Sentences

1. Lumen depreciation is the decrease in lumen output that occurs as a lamp operates .
2. The lumen is large , without any narrowing by atheromatous plaque .
3. Coronary arterial lumen has obvious the dark blood clots .
4. Find worms in the lumen of abomasum or intestine .
5. A former luminance unit equal to one lumen per square foot .