infrared spectrum

[ɪnfrəˈrɛd ˈspɛktrəm]
nounpl: infrared spectra / infrared spectrums
espectro infravermelho
1. The range of electromagnetic radiation with wavelengths longer than visible light but shorter than microwaves, typically used in spectroscopy to identify molecular composition and structure
The infrared spectrum revealed the presence of water molecules in the sample.
O espectro infravermelho revelou a presença de moléculas de água na amostra.
2. A graphical representation showing the intensity of infrared radiation absorbed or emitted by a substance at various wavelengths
The chemist analyzed the infrared spectrum to identify the functional groups in the compound.
O químico analisou o espectro infravermelho para identificar os grupos funcionais no composto.
The infrared spectrum is a fundamental tool in chemistry, materials science, and physics laboratories globally. Both Brazil and the USA employ identical scientific terminology for this concept, reflecting the international nature of scientific nomenclature. The term is used primarily in academic, research, and industrial laboratory settings.
Synonyms / Sinônimos
IR spectruminfrared absorption spectruminfrared emission spectrum
Antonyms / Antônimos
ultraviolet spectrumvisible spectrum

Regional Variations

General Brazilian Portuguese
espectro infravermelho
Standard term used in scientific and academic contexts throughout Brazil
São Paulo
espectro infravermelho
Commonly used in universities and research institutions
Rio de Janeiro
espectro infravermelho
Standard usage in scientific laboratories and educational settings
Portugal
espectro infravermelho
Identical terminology used in European Portuguese scientific community

Related Words

spectroscopywavelengthinfrared radiationmolecular vibrationabsorption bandtransmittanceFTIR (Fourier Transform Infrared)

Related Idioms & Phrases

read the infrared spectrum
interpret the infrared spectrum
generate an infrared spectrum
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