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windchill
noun
wind·chill
ˈwin(d)-ˌchil
: a still-air temperature that would have the same cooling effect on exposed human skin as a given combination of temperature and wind speed
called also chill factor, windchill factor, windchill index
Examples of windchill in a Sentence
It's cold outside, and it feels even colder because of the windchill.
Expect windchills in the 20s tonight.
Recent Examples on the Web
The temperature in Washington this morning is 24 degrees, with the windchill even lower and a light snow on the ground, a reason why Trump decided to move the swearing in ceremony indoors.
—Ted Johnson, Deadline, 20 Jan. 2025
The weather forecast for Washington, D.C., with the windchill factor, could take temperatures into severe record lows...
—David Faris, Newsweek, 19 Jan. 2025
Officials warned that windchills cold be as low as 10 below throughout Wednesday morning.
—Deanese Williams-Harris, Chicago Tribune, 15 Jan. 2025
Temperatures will drop to minus 6 overnight before any windchill.
—Lauren Penington, The Denver Post, 15 Jan. 2025
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Word History
First Known Use
1939, in the meaning defined above
Dictionary Entries Near windchill
Cite this Entry
“Windchill.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/windchill. Accessed 29 Jan. 2025.
Kids Definition
windchill
noun
wind·chill
-ˌchil
: a still-air temperature that would have the same cooling effect on exposed human flesh as a given combination of temperature and wind speed
called also windchill factor, windchill index
Medical Definition
windchill
noun
wind·chill
ˈwin(d)-ˌchil
: a still-air temperature that would have the same cooling effect on exposed human skin as a given combination of temperature and wind speed
called also chill factor, windchill factor, windchill index
More from Merriam-Webster on windchill
Britannica.com: Encyclopedia article about windchill
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