1. glowing with heat: emitting light as a consequence of being heated to a high temperature
2. glowing brightly: shining or glowing brightly
3. showing intense emotion: feeling or displaying intense emotion such as anger or romantic passion
[Late 18th century. Directly or via French< Latin incandescent-, present participle of incandescere "glow" < candescere "become white" < candidus (see candid)]