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lumen |
Also found in: Medical, Acronyms, Encyclopedia, Wikipedia, Hutchinson | 0.01 sec. |
lumen [ˈluːmɪn] n pl -mens, -mina [-mɪnə] 1. (Mathematics & Measurements / Units) the derived SI unit of luminous flux; the flux emitted in a solid angle of 1 steradian by a point source having a uniform intensity of 1 candela. Symbol lm 2. (Life Sciences & Allied Applications / Anatomy) Anatomy a passage, duct, or cavity in a tubular organ 3. (Life Sciences & Allied Applications / Botany) a cavity within a plant cell enclosed by the cell walls [New Latin, from Latin: light, aperture] lumenal , luminal adj
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They fancy some foul, obscure den, some horrible Tartarus "informis, ingens, cui lumen ademptum. - And afterwards, Non cui profundum Cæcitas lumen dedit Dircæus augur vidit hunc alto sinu, &c. Above him was the throat of the balloon bunched and tied together, but with an open lumen through which,Bert could peer up into a vast, empty, quiet interior, and out of which descended two fine cords of unknown import, one white, one crimson, to pockets below the ring. |
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