A cluster of students formed around him while he was dressing.

The clusters form in areas where there are lots of inputs.

In clusters they surrounded her, then broke away so that a new cluster might form.

The leaves turn red in the fall, and clusters of white berries form at their base.

With 212,635 residents, this cluster of towns forms the third largest metropolitan area in the state.

Clots and clusters would form, only to dissolve almost instantly away.

Each cluster forms another sphere, if it hasn't fallen apart.

Most open clusters form with at least 100 stars and a mass of 50 or more solar masses.

Sometimes, two clusters born at the same time will form a binary cluster.

A single cerebral cluster formed by about 30 eyes.