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

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

Booths of less well-known companies showcased the diverse range of drone technologies available, including "anti-jamming" devices, "sound recognition", "infrared thermal imaging" and "laser countermeasures".

From Barron's • May 21, 2026

The helicopter had been sent from the New York State Police headquarters in Albany; it had, we were told, a special infrared heat sensor.

From "The Secret History" by Donna Tartt

Vocabulary lists containing infrared

Physical Science - Energy - Middle School

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

Physics - Middle School

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

Physics - High School

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!