Nature's Oasis - Natural Foods Market - Durango, CO. A friendly and respectful community market, providing healthy alternatives, education and efficient caring service. Durango, CO 970-247-1988.
Table of Contents > Health Dictionary > Lumen

Lumen

1. The space in the interior of a hollow tubular structure (artery or intestine). 2. The unit of luminous flux; the luminous flux emitted in a unit solid angle of 1 steradian by a uniform point source of light having a luminous intensity of 1 candela. 3. The volume enclosed within the membranes of a mitochondrion or of the endoplasmic reticulum. 4. The bore of a catheter or hollow needle.
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