iv
nounUK /ˌaɪ ˈviː/
US /ˌaɪ ˈviː/
A tube with a needle that puts medicine or water into your body.
The nurse put an IV in my arm so I could get water.
OTHER MEANINGS
2. The number four written as Roman numerals.
The clock showed IV instead of 4.
3. A small plastic tube used to give liquids slowly into a vein.
He was attached to an IV after the surgery.
4. Short for intravenous, meaning into a vein.
The doctor gave her IV fluids to help her feel better.