But the face grew less defined, the voice lost its distinctive tone, as the years passed uninterruptedly by.

"Yes, you can," the young man said in a voice which had lost its sullen tone.

His voice lost its humorous tone, and she looked at him sharply.

The motor lost its high confident tone and began to stutter.

Her muscles had lost all their tone and she had no flexibility or extension.

The skin begins to lose its tone as the collagen support wears down.

Richard lost his indulgent tone as he leaned toward her.

Brady's voice, uncertain at first, lost its tentative tone as the idea solidified.

The jets lost their powerful tone from one moment to the next as the ignition failed.

This will cause the muscle to lose its tone and become flaccid.