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Glite Dictionary
emission spectrum

emission spectrum

6.7
A set of bright lines or bands of light given off by something hot like a gas
  • noun
  • /ɪˈmɪʃən ˈspɛktrəm/
  • Specialized
translation icon : espectro de emisión
  • The emission spectrum of the glowing gas showed distinct lines that corresponded to different elements.

So indeed, in the case if you put in a fluorescent protein or a fluorescent dye, then it has rather well defined absorption and emission Spectra, right.

Examples

  • Using the emission spectrum, researchers were able to determine the temperature of the gas cloud.

  • And so just to just to be clear, we have an emission spectrum that is quantized.

  • Emission spectra are dark, except for the lines of light.

    Academic text (2004)

  • OK, so let's see if we can try to understand this emission spectrum that you're seeing.

  • The group fit the emission spectrum with a thermal bremsstrahlung distribution and estimated a temperature of one million degrees.

    Academic text (2006)

  • Researchers use changes in the emission spectrum to gain valuable insight into the concentration and behavior of the emitting molecules.

    Academic text (2005)

  • Above threshold, the emission spectrum peaks sharply around 1504 nm, close to the theoretically predicted value.

    Academic text (1999)

  • This is called an emission spectrum, and here, too, the spectral lines can be used as fingerprints because each element emits photons only of specific wavelengths.

    Academic text (2004)

  • The scientist analyzed the emission spectrum to identify the chemical elements present in the distant star.

Synonyms

spectrum
vsemission spectrum
46 5.4

A band of colours seen in a rainbow when light splits

is the radiation from a self-luminous source that often shows characteristic lines
line spectrum
vsemission spectrum
  • Specialized
6.8

Light that shows bright or dark lines at certain colours

is the emitted pattern from glowing matter that can appear as lines or bands

Surface Forms

emission spectrum singular
emission spectrums plural
emission spectra plural

Morphology

emission + spectrum

The meaning is directly compositional: 'emission' (a release of radiation) combined with 'spectrum' (a band of wavelengths) yields the band of radiation emitted by a source. This noun–noun technical compound follows transparent formation and is cross-linguistically common, so a B1 learner who knows both constituents can grasp the general meaning even if they lack specialized detail.

Etymology

The term emission spectrum comes from the simple image of a glowing object 'giving off' light (emission) in different colors arranged as lines or bands (spectrum), like bright stripes or a barcode. That's why an emission spectrum means the pattern of light a thing 'gives off', which scientists use as a 'fingerprint' to identify what it is.