They move and rotate randomly in the fluid, a phenomenon called Brownian motion.

The beach volleyball court is used by an organization called perpetual motion.

It is often called standard Brownian motion, after Robert Brown.

These systems are called "continuous motion" because they never stop working.

An object moving in a curved path is called curvilinear motion.

I now call composite motion twenty two.

Even the wide-beam perception of Earthly eyes required special synapses to call motion to the attention, which solved most problems.

Taubman was best known for her development of a new piano technique, which she called coordinate motion.

Apparent motion across the sky relative to other stars is called proper motion.

It works something like the high school experiment called Brownian motion, which long ago provided evidence for the atomic structure of ordinary matter.