Open source dictionary?

Would it be possible to integrate an open source dictionary like Colordict? That way I don't have to leave the app if I need to look up obscure word. When you long-press a word and the dialog box comes with copy, highlight, etc you could add dictionary. Upon pressing dictionary, the preinstalled ColorDict comes up with the definition.

The beauty about ColorDict is you can preinstall plugins into it for other languages as well as etymologies. I don't know if I can name here, but I am a long time user of a different reading app which uses this. The app is great, but what made me change was that it kept Annotations in separate files when working with PDFs. Then I discovered Adobe Android app and realised that it's really awesome! Really like the reflow, simplicity, etc. But the dictionary is badly needed.

Thanks everyone!