A sound that persists or remains audible after its source has ceased to produce it; the perception of such a sound.
The second, slower phase of decay in the sound made by a piano string when it is struck.
Any low, indistinct sound, like that of running water.
The sound made by any condition which produces noisy, or turbulent, flow of blood through the heart.
A muttered complaint or protest; the expression of dissatisfaction in a low muttering voice; any expression of complaint or discontent.
Soft indistinct speech.
To say (something) indistinctly, to mutter.
To speak or make low, indistinguishable noise; to mumble, mutter.