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Medical Term:


Pronunciation: fen′il-thī′ō-hī-dan′tō-in

Definition: The compound formed from an amino acid in the Edman method of protein degradation, in which phenylisothiocyanate reacts with the amino moiety of the N-terminal amino acid to form a phenylthiocarbamoyl peptide or protein, on which weak acids act to release the phenylthiohydantoin containing the N-terminal amino acid.