Main Entry: lu·mi·nous

Pronunciation: \ˈlü-mə-nəs\

Function: adjective

Etymology: Middle English, from Latin luminosus, from lumin-, lumen

Date: 15th century

1 a : emitting or reflecting usually steady, suffused, or glowing light b : of or relating to light or to luminous flux
2 : bathed in or exposed to steady light <luminous with sunlight>
3 : clear, enlightening
4 : shining, illustrious <a luminous film star> <a luminous performance>

synonyms see bright

— lu·mi·nous·ly adverb

— lu·mi·nous·ness noun