Planet13 - 5:10 pm on Jun 27, 2013 (gmt 0)
While I haven't come across that exact scenario, I have disavowed various "usage" sites that are in English and define a word in English by quoting (and linking to) various sites around the web.
Most of those PAGES have a toolbar page rank of 0.
I don't know if disavowing them is going to help or not. We will see.