LUMINA
LUMEN
lumen
(noun) a cavity or passage in a tubular organ; “the lumen of the intestine”
lumen, lm
(noun) a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions
Source: WordNet® 3.1
Noun
lumina
plural of lumen
Anagrams
• alumni, minaul
Source: Wiktionary
LUMEN
Lu"men, n.; pl. L. Lumina (#), E. Lumens (#). [L., light, an opening for light.]
1. (Photom.) (a) A unit of illumination, being the amount of illumination of a unit area of spherical surface, due to a light of unit intensity placed at the center of the sphere. (b) A unit of light flux, being the flux through one square meter of surface the illumination of which is uniform and of unit brightness.
2. (Biol.) An opening, space, or cavity, esp. a tubular cavity; a vacuole.
Source: Webster’s Unabridged Dictionary 1913 Edition
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Word of the Day
23 January 2025
LEFT
(adjective) being or located on or directed toward the side of the body to the west when facing north; “my left hand”; “left center field”; “the left bank of a river is bank on your left side when you are facing downstream”
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