[f. as prec. + -NESS.] Luminous quality or condition; luminosity.
1667. Boyle, in Phil. Trans., II. 591. Whether stinking Fish, that shines, be of the same nature as to Luminousness with Rotten Wood, that shines too.
1773. Johnson, Lett. to Mrs. Thrale, 25 Aug. A library that for luminousness and elegance may vie at least with the new edifice at Streatham.
1873. J. H. Newman, Hist. Sk., III. II. v. 284. Expounding a sacred dogma with a luminousness which is almost an inspiration.
