Is it possible to add a url scheme to an already installed app?

Is it possible to add a url scheme to an already installed app?

Let me explain what i want to do first: I have an ipad and i installed a
cydia tweak that adds search engines to the notification center, i want to
search from the apps already installed. It worked for the IMDb application
using the following url scheme: imdb:///find?q=%@ Where %@ is the inserted
word Unfortunately there is no such url scheme for the Dictionary app, is
it possible to add a url scheme to it to search for a word directly from
that tweak.