Definition: googol

An extremely large number. The term was coined by Milton Sirotta, the young nephew of American mathematician Edward Kasner (1878-1955), who said a googol was 1 followed by 100 zeros (10¹⁰⁰). Since a googol is so large that it encompasses everything in the universe and then some, it just means a "gargantuan amount." An even larger amount is a googolplex.

Googol and Google: No Coincidence
The Google founders had googol in mind when they created their company name. They wanted to make something gigantic and they did. See Googleplex and Google.