spectra

[spek-truh] / ˈspɛk trə /

NOUN

color spectrum

Synonyms

STRONG

rainbow

WEAK

chromatic spectrum hue cycle

NOUN

range

Synonyms

STRONGEST

gamut scope

STRONG

compass extent field scale span sweep

NOUN

array

Synonyms

STRONGEST

continuum range sphere

STRONG

colors distribution sequence series

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.

Researchers have collected more than 600 million spectra from a region of sky spanning an area equivalent to more than 2,000 full Moons.

From Science Daily • Mar. 8, 2026

Jerry Xuan, a 51 Pegasi b Fellow at UCLA, built sophisticated atmospheric models to compare with the telescope's spectra and determine whether sulfur was present.

From Science Daily • Feb. 11, 2026

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

From Science Daily • Dec. 31, 2025

The spectra of the little red dots differed significantly from known dust-reddened active galactic nuclei.

From Science Daily • Nov. 29, 2025

Different stars have different spectra, but the relative brightness of the different colors is always exactly what one would expect to find in the light emitted by an object that is glowing red hot.

From "A Brief History of Time: And Other Essays" by Stephen Hawking