Meaning & use

Spectra

noun·Academic

Last updated

Ranges of related qualities, values, or wavelengths of light arranged in order, especially as produced by dispersing radiation.

See it in a sentence

Astronomers analyzed the light spectra from distant stars to determine their chemical composition.

The report compared political opinions across a wide spectra of viewpoints.

A note on using this word

This is the plural of 'spectrum'; in strict usage, 'spectra' should refer to more than one spectrum, though 'spectrums' is also accepted informally.

Words with a similar meaning

rangescontinuums

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