Definitions

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.

Walking through the space, I passed between the steam room and saunas of the traditional vapor and infrared variety.

From The Wall Street Journal • Jun. 9, 2026

Their high temperatures allow them to emit detectable infrared radiation.

From Science Daily • Jun. 1, 2026

I looked away from the infrared scope but could see nothing.

From The Wall Street Journal • May 30, 2026

Most of the videos disclosed on Friday feature grainy footage captured by US military infrared cameras between 2018 and 2023.

From BBC • May 22, 2026

If you travel toward the observer at almost the speed of light, you will become enveloped in an eerie chromatic radiance: your usually invisible infrared emission will be shifted to the shorter visible wavelengths.

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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