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

Crucially, the simulated light spectra closely matched what astronomers observe from real systems.

From Science Daily • Dec. 22, 2025

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

From Science Daily • Nov. 29, 2025

When the object was first identified in 2018, spectra obtained with the 200-inch Hale Telescope at Palomar Observatory showed no special features.

From Science Daily • Nov. 7, 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