heatcover
nounUK /ˈhiːtˌkʌvə/
US /ˈhiːtˌkʌvər/
A heatcover is a cover that keeps heat in or keeps heat out.
She put a heatcover on the pot so the soup would stay warm.
RELATED WORDS
OTHER MEANINGS
2. A protective layer that blocks heat from reaching something.
The heatcover on the spacecraft kept the inside cool.
3. A removable jacket placed around a container to keep its contents hot.
He wrapped a heatcover around the baby bottle.
4. A cover used to protect a surface from being damaged by heat.
Put a heatcover on the table before setting down the hot pan.