armcover
nounUK /ˈɑːmˌkʌvə/
US /ˈɑːrmˌkʌvər/
A cover that you put on your arm to keep it safe or warm.
She wore an armcover to protect her arm from the sun.
OTHER MEANINGS
2. A protective pad worn over the forearm in sports.
The player strapped on an armcover before the match.
3. A decorative cloth or band worn around the upper arm.
The dancer's armcover sparkled under the lights.
4. A covering used to keep a cast or bandage clean.
He used a plastic armcover so his cast stayed dry in the shower.