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Atlantic Ocean

American  
[at-lan-tik oh-shuhn] / ætˈlæn tɪk ˈoʊ ʃən /
Often the Atlantic

noun

  1. an ocean bounded by North America and South America in the Western Hemisphere and by Europe and Africa in the Eastern Hemisphere, with its deepest section in the Puerto Rico Trench: divided by the equator into the North Atlantic Ocean and the South Atlantic Ocean. 32,870,000 square miles (85,133,000 square kilometers).


Atlantic Ocean British  

noun

  1. the world's second largest ocean, bounded in the north by the Arctic, in the south by the Antarctic, in the west by North and South America, and in the east by Europe and Africa. Greatest depth: 9220 m (30 246 ft). Area: about 81 585 000 sq km (31 500 000 sq miles)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Atlantic Ocean Cultural  
  1. Second-largest ocean in the world, separating North America and South America on the west from Europe and Africa on the east.


Etymology

Origin of Atlantic Ocean

First recorded in 1600–10

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The Atlantic Ocean this month broke a century-old record for the latest time of year without hurricanes, one of many consequences of a historic El Niño reshuffling global weather.

From The Wall Street Journal ● Sep. 29, 2026

If there were one place on earth where you might imagine being disconnected from the internet, it might be in the beautiful blue waters of the Atlantic Ocean.

From The Wall Street Journal ● Sep. 24, 2026

Large amounts of Arctic sea ice move through this region on their way toward the Atlantic Ocean.

From Science Daily ● Sep. 18, 2026

Just three months ago, while on a research vessel in the Atlantic Ocean, she observed two.

From Los Angeles Times ● Sep. 5, 2026

We must have thought we were the only mice on the Atlantic Ocean.

From "Secrets at Sea" by Richard Peck

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