- plural of spectrum.
spectra
Americannoun
noun
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.
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
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
And yet, no water ice is indicated by the spectra of any of the three moons studied or their rings.
From Science Daily ● Aug. 14, 2026
Across the BHM and MWM surveys, DR20 contains more than 3 million spectra covering 1.5 million stars.
From Science Daily ● Aug. 14, 2026
Hubble began to measure the spectra of distant galaxies–the business that Slipher had begun in Arizona.
From "A Short History of Nearly Everything" by Bill Bryson
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
