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A googol is a number: 1 followed by one hundred zeros, also written as 10 to the power 100. It is so large that you will never count to it; use it when they want a name for “ many,” not for anything you can hold. A nine-year-old boy, Milton Sirotta, made the name up in 1920 after his uncle, the Edward Kasner, asked him to name ten to the power one hundred. The word was printed in a book, Mathematics and the Imagination, in 1940. Though actually, students mix it up with Google the company. The company's name was taken from this number — they wanted the feeling of a huge pile of information — but it is spelled differently, and it is not the number.
古戈爾（1 後面 100 個零）
組成A made-up name, not built from smaller English words. Coined by Milton Sirotta in 1920; first published in 1940.
同家族的字
- googolplexthe still bigger number built from googol
- Googlethe company's name was taken from this number
原始詞典資料1 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
googolnum/ˈɡuː.ɡəl/
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The number 10¹⁰⁰, or ten to the power of a hundred. Equivalent to ten duotrigintillion (short scale), or ten sexdecilliard (long scale).
- Words of wisdom are spoken by children at least as often as by scientists. The name "googol" was invented by a child (Dr. Kasner's nine-year-old nephew) who was asked to think up a name for a very big number, namely, 1 with a hundred zeros after it. He was very certain that this number was not infinite, and therefore equally certain that it had to have a name. […] A googolplex is much bigger than a googol, much bigger than a googol times a googol. A googol times a googol would be 1 with 200 zeros, whereas a googolplex is one with a googol of zeros. You will get some idea of the size of this very large but finite number from the fact that there would not be enough room to write it, if you went to the farthest star, touring all the nebulae and putting down zeros every inch of the way.
- For example, in considering all the finite state grammars that use seven terminal symbols and seven auxiliary symbols (states), [...] he must test over a googol (10^100) candidates.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。