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Synonyms

spectra

American  
[spek-truh] / ˈspɛk trə /

noun

  1. a plural of spectrum.


spectra British  
/ ˈspɛktrə /

noun

  1. the plural of spectrum

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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"When we compared the spectra during the transit to the baseline, we saw that the atmosphere blocked the wavelengths of starlight absorbed by methane," Bello-Arufe said.

From Science Daily • May 22, 2026

In its current phase, the project uses robotic instruments to collect spectra from millions of objects across the sky, helping scientists study how stars, black holes, and galaxies evolve over time.

From Science Daily • Apr. 4, 2026

The spectra revealed multiple metals -- elements heavier than helium -- mixed into the gas.

From Science Daily • Jan. 24, 2026

The team also compared the images with spectra from major facilities such as Gemini.

From Science Daily • Dec. 31, 2025

Following a lead by the astronomer V. M. Slipher at Lowell Observatory, they began measuring the spectra of distant galaxies.

From "Cosmos" by Carl Sagan

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