Which dictionary web site does google search use?

[Bitterdad706]

Hi

When we,google-english users,enter any English word in google search form,
google give us meaning of the word in the first line of search result.

For ex-sample,we enter the word "suspend",google shows us
below search result.
https://www.google.com/webhp?hl=en#hl=en...e+suspend+

I like this search result of dictionary very well.

I am asking you which dictionary website google-search use?
it seems be different from Wikitionary.

please teach me.

By knowing that, I want to add that website to firefox dictionary add-on or chrome dictionary extention.

Sorry my poor English

thank you

[Masters]

They use their own that they programmed.