He found that a period of 25.6 days matched his measurements.

Because its rotational period precisely matches its sidereal year, this planet presents the same face to its sun at all times.

Different periods literally rubbed elbows with no thought of anything but matching them in size.

This period matches the rise of dairy farming.

A true period puffer is one in which the period of the debris matches that of the puffer.

However, unlike what happens in Newtonian gravitation, the period of this oscillation will not quite match the orbital period.

The period of these bursts matched the rotation of the planet, and they were also able to use this information to refine the rotation rate.

As indicated above, the periods covered by each set of accounts do not always match.

If other effects were ignored, tidal acceleration would continue until the rotational period of the Earth matched the orbital period of the Moon.

Left to run its course, this tidal drag would continue until the spin of the Earth and the orbital period of the Moon matched.