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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:

In that earlier research, scientists found that Saharan dust carried across the Atlantic Ocean can mix with sea salt released by breaking waves.

From Science Daily Sep. 15, 2026

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

From Los Angeles Times Sep. 5, 2026

The Falkland Islands, in the south-west Atlantic Ocean, remain the subject of a sovereignty dispute between Britain and Argentina.

From BBC Sep. 1, 2026

The faster global warming occurs, the less time the Atlantic Ocean has to adjust, potentially increasing the vulnerability of one of the planet's most important circulation systems.

From Science Daily Aug. 14, 2026

On Christmas Eve 1906, from a wind-lashed transmitting station overlooking the Atlantic Ocean at Brant Rock, Massachusetts, a momentous sound was heard.

From "The Story of Music" by Howard Goodall

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