This is the 10907th most frequent Portuguese word.
infravermelha
"Infravermelha" means "infrared," referring to electromagnetic radiation with wavelengths longer than visible light but shorter than microwaves.
The word 'infravermelha' refers to the type of camera that is capable of detecting infrared radiation, a form of electromagnetic radiation.
A câmera infravermelha detecta fontes de calor.
The infrared camera detects heat sources.
Here, 'infravermelha' describes the type of sensor used, which operates by detecting infrared radiation.
O sensor de infravermelha foi instalado no laboratório para experimentos.
The infrared sensor was installed in the laboratory for experiments.
In this usage, 'infravermelha' denotes a specific type of light within the electromagnetic spectrum that is below visible red light.