aftersound

1. A sound that persists or remains audible after its source has ceased to produce it; the perception of such a sound.

2. The second, slower phase of decay in the sound made by a piano string when it is struck.

3. (устаревшее)A weaker sound that immediately follows a more salient one, such as the second, less prominent vowel sound in a falling diphthong.

правильный