Desirable dictionary has correct informations because many people can see or search for them to know accurate things.
So, If informations are wrong, they belive it 'correct'.
I know that definitions of your dictionary are submitted by your user. But when you realize some definitions are worng, even if your users' were inputted, you have to correct them.
Because your webpage is dictionary which shows definitions to the whole world that think dictionary has correct informations and you are webmaster who have general authority and responsibillity in your webpage.
Unless you are conscious any definitions wrong, it would be beyond your depth.
However, I sent a letter.
There is my plea to correct definitions. I wrote it very dilligently and took a long time.
Think why do i that.