barrier device
nounUK /ˈbæriə dɪˈvaɪs/
US /ˈbæriər dɪˈvaɪs/
A barrier device is a thing you put between you and something else to keep germs or dirt away.
The nurse used a barrier device to give the patient air safely.
RELATED WORDS
OTHER MEANINGS
2. A small plastic sheet with a one-way valve used in CPR to keep the rescuer safe.
She always keeps a barrier device in her first-aid kit.
3. Any physical object that blocks movement or contact between two things.
The workers set up a barrier device around the wet floor.
4. A protective cover used in medical or dental settings to prevent contamination.
The dentist changed the barrier device before the next patient.