adj. (Abbr. IV)
Within or administered into a vein.
n.
A drug, nutrient solution, or other substance administered into a vein.
intravenously in'tra·ve'nous·ly adv.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.