thermaldetector
nounUK /ˈθɜːməl dɪˈtektə/
US /ˈθɜːrməl dɪˈtektər/
A thermal detector is a tool that senses heat and tells you where it is.
The thermal detector showed the warm spot on the wall.
RELATED WORDS
OTHER MEANINGS
2. A device that uses infrared radiation to find warm objects, often used in night vision.
The thermal detector helped the rescue team find the lost hiker in the dark.
3. A fire alarm component that reacts to a rise in temperature.
The thermal detector in the ceiling triggered the alarm when the kitchen got too hot.
4. A scientific instrument that measures small changes in heat to study materials.
Scientists used a thermal detector to measure how the new material held heat.