intravenous//ˌɪntrəˈviːnəs//C1Frequency Level 12TechnicalAdjectiveintravenousCanonical form1Relating to or administered directly into a vein.The patient received intravenous fluids to prevent dehydration.2Situated or occurring within a vein.The nurse checked the intravenous catheter to ensure it was properly placed.SynonymIVvenous