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Meaning of hydantoin

hy•dan•to•in

Pronunciation: (hī-dan'tō-in), [key]
— n. Pharm.
  1. a colorless, needlelike, crystalline compound, CHNO, used in the synthesis of pharmaceutical substances and resins.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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