white whale

noun

1
2
or less commonly great white whale : something (such as a goal or object) that is obsessively pursued
… Apple's white whale these days seems to be developing a car.Steven Levy
It was the old man's white whale, the holy grail shining at the end of the dream, on and off the rails, as he chased scripts, directors, and movie stars of the proper magnitude.Rich Cohen
For drug makers, developing the first Alzheimer's therapy has long been seen as the great white whale: the toughest challenge and biggest opportunity.Robert Weisman

Illustration of white whale

Illustration of white whale
  • white whale 1

Examples of white whale in a Sentence

Recent Examples on the Web
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The story will be told through the eyes of Ishmael, the sole survivor of the clash with the great white whale. Joseph Hernandez march 26, Kansas City Star, 26 Mar. 2026 There was also the home defeat to Grand Canyon, their great white whale. Nick Canepa, San Diego Union-Tribune, 21 Mar. 2026 Collins, the only Republican incumbent on the ballot this year in a state won by Kamala Harris, has become a kind of white whale for Democrats. Mark Leibovich, The Atlantic, 16 Mar. 2026 But demography is certainly not destiny, because the state has been something of a white whale for Democrats. Domenico Montanaro, NPR, 13 Mar. 2026 See All Example Sentences for white whale

Word History

Etymology

(sense 2) after the white sperm whale obsessively hunted by Captain Ahab in Herman Melville's novel Moby Dick (1851)

First Known Use

1635, in the meaning defined at sense 1

Time Traveler
The first known use of white whale was in 1635

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Cite this Entry

“White whale.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/white%20whale. Accessed 29 Mar. 2026.

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