[loo-muh-nuh s] /ˈlu mə nəs/
radiating or reflecting light; shining; bright.
lighted up or illuminated; well-lighted:
the luminous ballroom.
brilliant intellectually; enlightened or enlightening, as a writer or a writer’s works:
a luminous concept; luminous prose.
clear; readily intelligible:
a concise, luminous report.
radiating or reflecting light; shining; glowing: luminous colours
(not in technical use) exhibiting luminescence: luminous paint
full of light; well-lit
(of a physical quantity in photometry) evaluated according to the visual sensation produced in an observer rather than by absolute energy measurements: luminous flux, luminous intensity Compare radiant
easily understood; lucid; clear
enlightening or wise
early 15c., “full of light,” from Latin luminosus “shining, full of light,” from lumen (genitive luminis) “light,” related to lucere “to shine” (see light (n.)). Related: Luminously.
luminous lu·mi·nous (lōō’mə-nəs)
Emitting light, especially emitting self-generated light.
noun 1. paint containing a phosphor that emits visible light when irradiated with ultraviolet light.
noun, Navigation. 1. the distance at which a certain light, as that of a lighthouse, is visible in clear weather, disregarding interference from obstructions and from the curvature of the earth and depending on the power of the light.
lumirhodopsin lu·mi·rho·dop·sin (lōō’mə-rō-dŏp’sĭn) n. An intermediate formed during the bleaching of rhodopsin by light.
/luːˈmɪstəˌrɒl/ noun 1. (biochem) a steroid compound produced when ergosterol is exposed to ultraviolet radiation. Formula: C28H44O