polar front

noun

Definition of polar front 

: 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 Web

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, "As Seas Warm, King Penguins’ Food Is Moving Farther Away. That’s a Problem," 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, "As Seas Warm, King Penguins’ Food Is Moving Farther Away. That’s a Problem," 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.

First Known Use of polar front

1920, in the meaning defined above

Keep scrolling for more

Learn More about polar front

Share polar front

Statistics for polar front

Look-up Popularity

Time Traveler for polar front

The first known use of polar front was in 1920

See more words from the same year

More from Merriam-Webster on polar front

See words that rhyme with polar front

Britannica.com: Encyclopedia article about polar front

Comments on polar front

What made you want to look up polar front? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

an open space surrounded by woods

Get Word of the Day daily email!

Test Your Vocabulary

Name that Food Quiz

Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

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