warmthindicator
nounUK /ˈwɔːmθˌɪndɪkeɪtə/
US /ˈwɔːrmθˌɪndɪkeɪtər/
A thing that shows you how warm something is.
The warmthindicator on the heater turned red when the room got cozy.
RELATED WORDS
OTHER MEANINGS
2. A small light on a device that glows to show it is heating up.
Wait until the warmthindicator stops blinking before you touch the plate.
3. A sign in a place that tells people how hot or cold it feels.
The warmthindicator by the pool showed a happy sun symbol.
4. A friendly feeling you can notice in someone's voice or smile.
Her kind words were a warmthindicator that made everyone feel welcome.