polar circle


: either of the two parallels of latitude each at a distance from a pole of the earth equal to about 23 degrees 27 minutes

Examples of polar circle in a Sentence

Recent Examples on the Web At that time, the Australian state of Victoria – where volunteers first found the fossils in the late 1980s – would have crossed into the polar circle, meaning it would’ve been covered in darkness for weeks on end during the winter. Matt Hrodey, Discover Magazine, 1 June 2023 Sailing along the western Antarctic Peninsula from the South Shetland Islands down to the polar circle, guests do things like record the temperature and salinity of seawater to aid the vital mission of tracking the impact of melting glaciers in one of the fastest-warming spots on earth. Mark Johanson, Condé Nast Traveler, 22 July 2021

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'polar circle.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1556, in the meaning defined above

Time Traveler
The first known use of polar circle was in 1556

Dictionary Entries Near polar circle

Cite this Entry

“Polar circle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polar%20circle. Accessed 10 Dec. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!