Definition of googolplex in English:
 googolplex
cardinal numberˈɡuːɡ(ə)lplɛksˈɡo͞oɡôlˌpleks
Equivalent to ten raised to the power of a googol.
 Example sentencesExamples
-  Even bigger than a googol, according to Kasner, is a googolplex, a 1 followed by a googol zeros.
 -  Regarding other large numbers, neither googolplex nor infinity return calculator results.
 -  Through this method, a wild guess at the Möbius value of googolplex + 1 is possible, without a complete factorization.
 -  Consequently, finding a specific number among the googolplex available can be as challenging as locating a particular piece of hay in a haystack.
 -  Here's an example, out of a possible googolplex of similar instances.
 
Origin
  
1940s: from googol + -plex as in multiplex.
   Definition of googolplex in US English:
 googolplex
cardinal numberˈɡo͞oɡôlˌpleks
Equivalent to ten raised to the power of a googol.
 Example sentencesExamples
-  Here's an example, out of a possible googolplex of similar instances.
 -  Through this method, a wild guess at the Möbius value of googolplex + 1 is possible, without a complete factorization.
 -  Regarding other large numbers, neither googolplex nor infinity return calculator results.
 -  Consequently, finding a specific number among the googolplex available can be as challenging as locating a particular piece of hay in a haystack.
 -  Even bigger than a googol, according to Kasner, is a googolplex, a 1 followed by a googol zeros.
 
Origin
  
1940s: from googol + -plex as in multiplex.