infrared

[in-fruh-red] / ˌɪn frəˈrɛd /

NOUN

red

Synonyms

STRONGEST

cardinal coral crimson flaming glowing maroon rose wine

STRONG

blooming blush brick burgundy carmine cerise cherry chestnut claret copper dahlia fuchsia garnet geranium magenta pink puce ruby russet rust salmon sanguine scarlet titian vermilion

WEAK

bloodshot florid flushed healthy inflamed roseate rosy rubicund ruddy rufescent

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.

By modifying this position, they were able to shift the protein's sensitivity further toward longer wavelengths, bringing it closer to the infrared range.

From Science Daily • Apr. 9, 2026

This allowed the researchers to analyze its structure with high precision using infrared spectroscopy.

From Science Daily • Apr. 7, 2026

This ranges from shapes captured on trails or infrared cameras to a howl or witness testimony, allowing Bigfooters to hypothesise what that means about the beast's "anatomy, behaviour, sociality and levels of intelligence".

From BBC • Apr. 3, 2026

Embarking on expeditions in vast and sometimes dangerous environments, Bigfoot hunters set out with drones, infrared cameras, audio recorders and materials to cast footprints.

From BBC • Apr. 3, 2026

But because Venus is much cooler than the Sun, it emits radiation chiefly in the infrared rather than the visible region of the spectrum.

From "Cosmos" by Carl Sagan

Vocabulary lists containing infrared

Physical Science - Energy - Middle School

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Physics - Middle School

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Physics - High School

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