"The rate of back-and-forth movement seems to be slowing," the study concludes.

However, in that context the etymology is most likely divergent, springing instead from the Old Norse veif, a back-and-forth movement.

The war was characterized by a back-and-forth movement of the Swedish and Prussian armies, neither of whom would score a decisive victory.

Although the infra-red scans had been inconclusive, laser-ranging devices had detected slight back-and-forth movement of the entire ship.

The technique used to prepare the cooking ingredient is pulling and pushing a block of katsuobushi across the blade in the device in a back-and-forth movement.

Snagtooth had a great deal of difficulty sleeping; even the back-and-forth movement of her jaw when eating seemed to hurt her.

There is also a hypothesis which suggests that this learning process is the same pattern seen in the back-and-forth looping movement of a particle being disturbed by a wave.

It has a back-and-forth movement, quite disgusting, and quite foreign.

The back-and-forth movement over the gasoline tax is only the latest in what has been a confusing situation here on taxes, in general.

He started a back-and-forth movement, and she held on to his body grimly.