- 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.
One interesting result, Davis says, is that signatures of magnesium-rich phyllosilicates were found in the spectra of Larissa, Galatea, and the rings -- minerals that only form in the presence of liquid water.
From Science Daily ● Aug. 14, 2026
Roughly 99% of those objects will be observed only photometrically, meaning through images taken in different colors rather than detailed spectra.
From Science Daily ● Jun. 29, 2026
According to the researchers, the new method delivers redshift estimates with precision comparable to spectroscopic measurements, but without requiring spectra.
From Science Daily ● Jun. 29, 2026
"The spectra revealed that the signatures of the high-temperature plasma change velocity between the three observations, following the orbital motion of the white dwarf rather than that of the Be star," the researcher continues.
From Science Daily ● Mar. 25, 2026
He raises the truck’s aerial, puts on the headset, and scans the spectra, trying to find anything that is not sanctioned.
From "All the Light We Cannot See" by Anthony Doerr
![]()
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.