1. (abbreviation) .  (US, navy) light cruiser, a type of warship.
  2. (abbreviation) .  (astronomy) a cluster.
  3. (abbreviation) .  (astronomy) A cluster.
  4. (abbreviation) .  (astronomy) A cluster of galaxies — a galaxy cluster.
  5. (abbreviation) .  (star) A cluster of stars — a star cluster.

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This entry was last updated on RefTopia from its source on 3/20/2012.