Plurals Lost In Google Dictionary Defintions

Search for car on Google and you'll get a option to view a dictionary definition of the word via Google's partnership with Answers.com, like this:

Results 1 - 10 of about 326,000,000 for car [definition]. (0.09 seconds) 

But search for cars, and suddenly, no definition is provided:

Results 1 - 10 of about 124,000,000 for cars. (0.12 seconds) 

What a difference an S makes? A lot if you're a Googlewhacker trying to determine if your entry has won by following the rules requiring verification in the dictionary. A lot of plurals, it seems, have gone missing.

More from Googlewhack itself in Google and Answers.com Esslessness.