Pronunciation: (klus'tur), [key]
1. a number of things of the same kind, growing or held together; a bunch: a cluster of grapes.
2. a group of things or persons close together: There was a cluster of tourists at the gate.
3. U.S. Army.a small metal design placed on a ribbon representing an awarded medal to indicate that the same medal has been awarded again: oak-leaf cluster.
4. Phonet.a succession of two or more contiguous consonants in an utterance, as the str- cluster of strap.
5. Astron.a group of neighboring stars, held together by mutual gravitation, that have essentially the same age and composition and thus supposedly a common origin. Cf. globular cluster, open cluster, stellar association.

1. to gather into a cluster or clusters.
2. to furnish or cover with clusters.

to form a cluster or clusters: The people clustered around to watch.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

Clusiumcluster bomb
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