Courts are using Wikipedia's definitions of terms
A simple search of published court decisions shows that Wikipedia is frequently cited by judges around the country, involving serious issues and the bizarre — such as a 2005 tax case before the Tennessee Court of Appeals concerning the definition of “beverage” that involved hundreds of thousands of dollars, and, just this week, a case in Federal District Court in Florida that involved the term “booty music” as played during a wet T-shirt contest.
Also, the courts' use of Wikipedia's definitions of terms is discussed here and here.
Courts' acceptance of Wikipedia's definitions of terms is especially alarming because there has been a lot of controversy over some Wikipedia definitions and in many cases dissenting views about those definitions have been suppressed. For example, there have been big Wikipedia controversies over the meanings of the following terms:
"reverse engineering" -- there is a controversy over whether the "reverse engineering" of natural objects -- as opposed to man-made objects -- should be included in the definition.
"banned book" -- there was a big controversy over whether the book "Of People and Pandas" meets the definition of "banned book." Some hocus-pocused that it wasn't really banned because Judge Jones did not expressly ban it but only banned the statement that mentioned it. Others hocus-pocused that it wasn't banned in the school library but was only banned in the curriculum. Others kept obstinately insisting on a statement from a "reliable non-partisan source" that the book was banned.
And of course there is a huge controversy over the definition of term "intelligent design."
As I said, it is impossible to reach a consensus on a single undisputed Wikipedia presentation of a controversial subject. IMO the only solution is just to add disputed items to Wikipedia along with notices that the items are disputed and links to external websites where the disputes are discussed or debated.