Wordnet 3.0
NOUN (1)
1. 
 administration of a nutritionally adequate solution through a catheter into the vena cava; 
 used in cases of long-term coma or severe burns or severe gastrointestinal syndromes; 
[syn: total parenteral nutrition, TPN, hyperalimentation]
WordNet (r) 3.0 (2006):
TPN
    n 1: administration of a nutritionally adequate solution through
         a catheter into the vena cava; used in cases of long-term
         coma or severe burns or severe gastrointestinal syndromes
         [syn: total parenteral nutrition, TPN,
         hyperalimentation]