infrared

adjective

in·fra·red | \ ˌin-frə-ˈred

, -(ˌ)frä-, -fə- \

Definition of infrared

1 : situated outside the visible spectrum at its red end —used of radiation having a wavelength between about 700 nanometers and 1 millimeter

2 : relating to, producing, or employing infrared radiation infrared therapy

3 : sensitive to infrared radiation infrared sensors that detect body heat

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Examples of infrared in a Sentence

Recent Examples on the Web Harley’s team used infrared cameras to measure similar temperatures on the rocky shoreline where the sea creatures once lived. — Shi En Kim, Smithsonian Magazine, 12 July 2021 Detecting leaks early and often, through technology such as infrared cameras or satellite imaging, can also help plug up leaks. — Irina Ivanova, CBS News, 9 July 2021 Harley’s research team used infrared cameras to measure temperatures on the shoreline rocks, recording some readings as high as 122 degrees. With mechanisms to keep from drying out, mussels are able to withstand high temperatures. — Sammy Westfall, Anchorage Daily News, 8 July 2021 Harley’s research team used infrared cameras to measure temperatures on the shoreline rocks — recording some readings as high as 122 degrees. With mechanisms to keep from drying out, mussels are able to withstand high temperatures. — Washington Post, 8 July 2021 Modern acoustic sensors and infrared cameras can detect a diesel engine from multiple miles away. — Eric Tegler, Forbes, 23 June 2021 The three videos released by the Navy were filmed by infrared cameras. — Andrew Dyer, San Diego Union-Tribune, 29 May 2021 Many of the latest drones used by law enforcement can be fitted with an array of attachments, such as infrared thermal cameras, spotlights and powerful zoom lenses. — David Chanen, Star Tribune, 21 May 2021 An infrared camera is being used in the search from the air. — Cliff Pinckard, cleveland, 18 June 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'infrared.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.