Dictionary  to'tal paren'teral nutri'tionMed. intravenous administration of a solution of essential nutrients to patients unable to ingest food, esp. in cases of severe gastrointestinal or malabsorption disorders or prolonged coma. Abbr.: TPN Also called hyperalimentation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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