Urban areas under 50,000 people are called urban clusters.

Larger structures containing many thousands of galaxies packed into an area a few megaparsecs across are called clusters.

Although it is not apparent to the user, one file can actually be spread out around the hard drive in different blocks, called clusters.

The Explorations curriculum is built around theme-based interdisciplinary units called clusters.

For example, files in a file system are usually managed in units called blocks or clusters.

And she didn't take individual actions what she took was what she called clusters.

Dr. Zhang remembers calling them "clusters" of atoms in an early scientific paper.

It was designed to measure the strength of division of a network into modules (also called groups, clusters or communities).

We call clusters of stars that make a picture constellations.

Smaller associations of asteroids are called groups or clusters.