: the boundary between the cold air of a polar region and the warmer air of lower latitudes
Examples of polar front in a Sentence
Recent Examples on the WebAnd those anomalous years offer a preview of how the Southern Ocean is expected to warm in the coming decades, steadily shifting the polar front farther south.
Eli Kintisch, Science | AAAS, 19 Mar. 2020 The polar front doesn’t stay in the same place every year.
Eli Kintisch, Science | AAAS, 19 Mar. 2020 Adult penguins take turns to forage for food, traveling hundreds of miles to reach the Antarctic polar front—a nutrient-rich stretch of ocean where cold deep water meets warmer patches.
Julissa Treviño, Smithsonian, 1 Mar. 2018 In addition to a reliable source of food like the Antarctic polar front, king penguins also need tolerable temperatures, islands with smooth beaches (not rocky ones) and relatively little ice, Hignett writes.
Julissa Treviño, Smithsonian, 1 Mar. 2018
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'polar front.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.