Lu"mi*nous (?), a. [L. luminosus, fr. lumen light: cf. F. lumineux. See Luminary, Illuminate.]
1.
Shining; emitting or reflecting light; brilliant; bright; as, the is a luminous body; a luminous color.
Fire burneth wood, making it . . . luminous.
Bacon. The
mountains lift . . . their lofty and luminous heads.
Longfellow. 2. Illuminated; full of light; bright; as, many candles made the room
luminous.
Up the staircase moved a luminous space in the darkness.
Longfellow.
3. Enlightened; intelligent; also, clear; intelligible; as, a luminous mind. "
Luminous eloquence." Macaulay. " A
luminous statement." Brougham.
Luminous paint, a paint made
up with some phosphorescent substance, as sulphide of calcium, which after exposure to a strong light is luminous in the dark for
a time.
Syn. -- Lucid; clear; shining; perspicuous.
-- Lu"mi*nous*ly, adv. -- Lu"mi*nous*ness, n.
Hear it pronounced