- - Ultraviolet's counterpart
- - Remarkably rare find that is out of our range
- - Popular fellow seldom having day out of visibility?
- - Stylish brother a cardinal? I can't see it
- - radiation that is invisible to the human eye but we can sense as heat
- - a wavelength that sits outside the visible spectrum
- - ... light is not visible to humans but can be used in thermal imaging or remote control tech
- - like radiation from the big bang
- - Find out about exceptional radiation
- - With a frequency between the red end of the visible spectrum and microwaves
- - Out-of-sight light
- - Spectrum part
- - Drunk friend covers artist in radiation
- - Like night-vision goggles
- - German woman nearly gets into debt - that doesn't normally come to light
- - Find out about unusual part of spectrum
- - Find out about unusual type of radiation
- - Such photography has popular female artist looking embarrassed
- - Visible through night-vision goggles, say
- - Between visible and microwave
- - Like some rays outside the visible spectrum
- - Night vision assistance
- - Like some night vision
- - What a sniperscope employs
- - Thermography radiation
- - Radiation band
- - Like quartz heater radiation
- - Kind of bulb in a heat lamp
- - Part of the invisible spectrum
- - Kind of lamp or galaxy
- - Describing invisible rays
- - Kind of lamp
- - Like some vision
- - Type of light
- - Kind of rays
- - Type of radiation
- - Certain rays
- - Type of light that can be felt as heat but cannot be seen
- - Beyond the end of the visible spectrum
- - type of light that can be seen with night vision goggles
- [ Edit ]
- [ Other definitions ]