af·ter·glow     Audio Help   (āf'tər-glō')  Pronunciation Key
n.  

1. The atmospheric glow that remains for a short time after sunset.
2. The light emitted after removal of a source of energy, especially:
     1. The glow of an incandescent metal as it cools.
     2. The emission of light from a phosphor after removal of excitation.
3. The comfortable feeling following a pleasant experience.
4. A lingering impression of past glory or success.