ultrared
/ˌʌltrəˈrɛd/
adjective
- Relating to or denoting electromagnetic radiation with a wavelength longer than visible red light, i.e., infrared.
- Some animals can see ultrared wavelengths that humans cannot.
- Scientists use ultrared sensors to study heat patterns in the environment.
- The telescope can detect ultrared light from distant stars.
noun
- Infrared radiation or the part of the spectrum beyond red.
- The camera is sensitive to ultrared and can capture heat signatures.
- Ultrared is used in remote controls to send signals to devices.
- Astronomers study ultrared to learn about cool objects in space.