temperaturecrayon

noun
UK /ˈtɛmprətʃəˌkreɪɒn/
US /ˈtɛmprətʃərˌkreɪɑn/

A temperaturecrayon is a special crayon that changes color when it gets warm or cold.

Mia held the temperaturecrayon in her warm hand and watched it turn from blue to pink.


OTHER MEANINGS

2. A crayon whose pigment reacts to temperature changes for science demonstrations.

The teacher used a temperaturecrayon to show how heat moves from our hands.

3. A novelty art tool used to reveal hidden pictures when warmed.

We colored a secret message with a temperaturecrayon and warmed the paper to read it.

4. A metaphor for something that shifts with changing conditions.

His mood was like a temperaturecrayon, turning different colors with the weather.