Noah Webster's Dictionary 1. (a.) Emitting self-generated light; as, a luminous body; a luminous color. 2. (a.) Illuminated; full of light; bright; as, many candles made the room luminous. 3. (a.) Enlightened; intelligent; also, clear; intelligible; as, a luminous mind.

Multi-Version Concordance Luminous (1 Occurrence) Matthew 17:5 He was still speaking when a luminous cloud spread over them; and a voice was heard from within the cloud, which said, "This is My Son dearly beloved, in whom is My delight. Listen to Him." (WEY)