Pronunciation: /ˈɡuːɡəl/
noun a very large number, specifically 10 raised to the power of 100
A1 A googol is a very large number, written as 1 followed by 100 zeros.
A2 In mathematics, a googol is equal to 10 raised to the power of 100.
B1 The concept of a googol was introduced by mathematician Edward Kasner in 1938.
B2 A googol is much larger than the estimated number of atoms in the observable universe.
C1 The term 'googol' was coined by Kasner's nine-year-old nephew, Milton Sirotta.
C2 The concept of a googol is used to illustrate the vastness of very large numbers in mathematics.
formal A googol is a large number equal to 10 raised to the power of 100.
informal I heard that there's a number called googol that's really big.
slang Dude, have you ever heard of a googol? It's like a crazy huge number.
figurative Her love for him was like a googol, immeasurable and infinite.
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