infrared

[/ˌɪnfrəˈrɛd/]
adjective, noun
infravermelho
1. Relating to or denoting electromagnetic radiation with a wavelength just greater than that of red light, but less than that of microwaves
Infrared cameras can detect heat signatures in complete darkness.
Câmeras infravermelhas podem detectar assinaturas térmicas na escuridão total.
2. Technology or devices that use infrared radiation for detection, communication, or heating purposes
The remote control uses infrared signals to operate the television.
O controle remoto usa sinais infravermelhos para operar a televisão.
3. The infrared spectrum or radiation itself
Infrared is invisible to the human eye but can be felt as heat.
O infravermelho é invisível ao olho humano, mas pode ser sentido como calor.
Infrared technology is widely used in both American and Brazilian contexts, from military applications to consumer electronics like remote controls and thermal cameras. The term 'infravermelho' is the standard scientific term in Portuguese-speaking countries and is used consistently across formal and technical settings.
Synonyms / Sinônimos
thermal radiationheat radiationIR
Antonyms / Antônimos
ultravioletvisible light

Regional Variations

General Brazilian
infravermelho
Standard term used in scientific and technical contexts
Portugal
infravermelho
Same as Brazilian Portuguese; also sometimes abbreviated as IV
Technical/Scientific
IV (abbreviation)
Commonly used abbreviation in both Brazil and Portugal

Related Words

spectrumthermal imagingheat detectionelectromagnetic radiationwavelength

Related Idioms & Phrases

infrared technology
infrared thermography
infrared spectrum
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