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In days gone by, much of the male population of the northern states in the cold months would wear a garment of thermal underwear covering the entire body, called a union suit. Union suits kept sodbusters, cowboys, and townsfolk alike not only warm but also itchy and a little on the smelly side (back when bathing once a week was considered the height of cleanliness). Thermal imaging is photography that captures "heat pictures"--rather than ordinary light pictures--of objects. And thermal pollution occurs when industrial water use ends up warming a river in a damaging way. Small-plane pilots use thermal as a noun for a warm updraft, often over a plowed field or desert, that lifts their wings, just as it enables hawks to soar upward without moving their wings.
Examples of thermal in a Sentence
PCMAG, 23 Oct. 2024
An insulated polished concrete floor without floor coverings acts as thermal storage to also helpj maintain the home’s 73 degree temperature.
—Jennifer Castenson, Forbes, 22 Oct. 2024
Antony Leather, Forbes, 24 Oct. 2024
Intel Core Ultra 200: Drastically lower power and thermals
The key takeaway, though, is that the Core Ultra 200 series will be far more power frugal, drawing up to 165W less than the 14th gen models, with the Core Ultra 9 285K drawing on average 80W less in games.
—Antony Leather, Forbes, 10 Oct. 2024
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Cite this Entry
“Thermal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thermal. Accessed 6 Nov. 2024.
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