Wordnet 3.0
NOUN (1)
1. 
 a widely used search engine that uses text-matching techniques to find web pages that are important and relevant to a user's search; 
VERB (1)
1. 
 search the internet (for information) using the Google search engine; 
- Example: "He googled the woman he had met at the party"- Example: "My children are googling all day"
The Collaborative International Dictionary of English v.0.48:
google \goo"gle\ n. (Computers)
   To search for Web pages containing a word or phrase, using
   the Google web site (www.google.com); as, I googled
   "ontology" and found 351,000 references. [recent]
   [PJC]
WordNet (r) 3.0 (2006):
Google
    n 1: a widely used search engine that uses text-matching
         techniques to find web pages that are important and
         relevant to a user's search
    v 1: search the internet (for information) using the Google
         search engine; "He googled the woman he had met at the
         party"; "My children are googling all day"
The Jargon File (version 4.4.7, 29 Dec 2003):
google
 v.
    [common] To search the Web using the Google search engine, http://
    www.google.com. Google is highly esteemed among hackers for its
    significance ranking system, which is so uncannily effective that many
    hackers consider it to have rendered other search engines effectively
    irrelevant. The name ?google? has additional flavor for hackers because
    most know that it was copied from a mathematical term for ten to the 100th
    power, famously first uttered as ?googol? by a mathematician's
    nine-year-old nephew.
The Free On-line Dictionary of Computing (30 December 2018):
Google
    The web search engine that indexes the greatest number
   of web pages - over two billion by December 2001 and provides a
   free service that searches this index in less than a second.
   The site's name is apparently derived from "googol", but
   note the difference in spelling.
   The "Google" spelling is also used in "The Hitchhikers Guide
   to the Galaxy" by Douglas Adams, in which one of Deep
   Thought's designers asks, "And are you not," said Fook,
   leaning anxiously foward, "a greater analyst than the
   Googleplex Star Thinker in the Seventh Galaxy of Light and
   Ingenuity which can calculate the trajectory of every single
   dust particle throughout a five-week Dangrabad Beta sand
   blizzard?"
   (http://google.com/).
   (2001-12-28)