from The American Heritage® Dictionary of the English Language, 4th Edition

  • Greek Mythology Castor and Pollux, the twin sons of Leda and brothers of Helen and Clytemnestra, who were transformed by Zeus into the constellation Gemini.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • proper n. The twin brothers Castor and Pollux together.

from The Century Dictionary and Cyclopedia

  • In Greek myth, the twin sons of Zeus and Leda, Castor and Polydeuces or Pollux, warrior gods, and tutelary protectors of sailors. At a comparatively late date the Dioscuri were partly confused with the Cabiri.


Greek Dioskouroi : Dios, genitive of Zeus, Zeus; see dyeu- in Indo-European roots + kouroi, pl. of kouros, boy.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek Διόσκουροι (Dióskūroi, "the youths of Zeus"). (Wiktionary)


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