noun, plural lu·mens, lu·mi·na [loo-muh-nuh]. /ˈlu mə nə/.
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Origin of lumen
Example sentences from the Web for lumen
Sarah and Jennifer are soon trapped in the trunk of the Lumina.The Stacks: The Searing Story of How Murder Stalked a Tiny New York Town|E. Jean Carroll|April 19, 2014|DAILY BEAST
Jamie Merisotis CEO, Lumina Foundation The president asked for ideas that would be immediately implementable.
In advanced stages there is much gummy material in the lumina, and even large cavities filled with this gum may be found.Disease in Plants|H. Marshall Ward
Dr. Rostafinski called the large open meshes of the net 'oka', eyes; lumina let us say!The North American Slime-Moulds|Thomas H. (Thomas Huston) MacBride
Any agent which acts to produce thickening of the walls of the arterioles, narrowing their lumina, produces the same effect.Arteriosclerosis and Hypertension:|Louis Marshall Warfield
This is because the wall of the wood cells is very thick, and the lumina are small.Wood and Forest|William Noyes
Ad cœlum tendens ardentia lumina frustra,Lumina nam teneras arcebant vincula palmas.The Lusiad|Lus de Cames