noun
band spectrum
Technical term in physics for a spectrum consisting of bands of closely spaced lines, as opposed to a continuous or line spectrum.
分子の帯スペクトルを解析すると、分子の構造がわかる。
Analyzing the band spectrum of a molecule reveals its structure.
Compound of 帯 (band) and スペクトル (spectrum), a direct calque of the English term 'band spectrum'.