Meaning of Cerberus

Cer•ber•us

Pronunciation: (sûr'bur-us), [key]
— pl. -ber•us•es, -ber•i
  1. a dog, usually represented as having three heads, that guarded the entrance of the infernal regions.
  2. a formidable and often surly keeper or guard.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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