- plural of spectrum.
spectra
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Nearly 30 hours of exposure time collected enough light for the team to identify extremely faint absorption features in the spectra of the distant galaxies.
From Science Daily ● Oct. 2, 2026
This broad frequency range allowed researchers to examine how the radio spectra of the galaxies change as particles inside their lobes grow older.
From Science Daily ● Sep. 4, 2026
DR20 now includes integral field spectroscopy maps of 6 separate target regions covering 169 tiles and about 300,000 spectra.
From Science Daily ● Aug. 14, 2026
For the first time, DR20 includes SDSS-V stellar and extra-galactic optical spectra obtained in the Southern Hemisphere.
From Science Daily ● Aug. 14, 2026
Humason and Hubble found, to their amazement, that the spectra of all the distant galaxies are red-shifted and, still more startling, that the more distant the galaxy was, the more red-shifted were its spectral lines.
From "Cosmos" by Carl Sagan
