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spectra <a spectrum; spectra / spectrums> N (sing.spectrum)

mass spectra PHYS

optical spectra

spectrum <a spectrum; spectra / spectrums> N

abnormal spectrum PHYS

absent spectrum PHYS

absorption spectrum

arc spectrum PHYS

atomic spectrum PHYS

band spectrum

color spectrum N COMPUT

comparison spectrum LIGHT

continuous spectrum

diffraction spectrum LIGHT

electric spectrum ELEC

electromagnetic spectrum PHYS

emission spectrum N PHYS

fission spectrum PHYS

flash spectrum ASTRON

fluted spectrum PHYS

Monolingual examples (not verified by PONS Editors)

English
Some implementations do not normalise the spectra.
en.wikipedia.org
A mixture of mercury and thallium vapour, when irradiated with the light of the mercury resonance line, shows the emission spectra of both atoms.
en.wikipedia.org
These spectra contain quantitative information on all major elements in the samples except for hydrogen, helium and lithium.
en.wikipedia.org
These stars have spectra very similar to novae that have returned to quiescence after outbursts, yet they have not been observed to have erupted themselves.
en.wikipedia.org
The modulated spectra is convolved with itself, doubling its bandwidth by the length property of the convolution.
en.wikipedia.org
The instrument possesses a spectrograph equipped with two banks each of 200 optical fibres, permitting the simultaneous measurement of 400 spectra.
en.wikipedia.org
There, he studied emission lines in the spectra of certain hot stars, and studied gas clouds in the interstellar medium.
en.wikipedia.org
Spectroscopy is also used to identify the composition of remote objects - like stars and distant galaxies - by analyzing their radiation spectra.
en.wikipedia.org
This explains afterimage (physiological spectra).
en.wikipedia.org
The Hubble Space Telescope was used to observe the ultraviolet part of the stellar spectra.
en.wikipedia.org

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