Change default lookup link for selected word definitions in Acrobat Pro and Reader
Currently the default lookup reference for word definitions in Acrobat is dictionary.com, an inadequate resource for a great many word definitions. There should be a setting to change this default to another URL of the user's choice. Some examples, but not exclusively, that are significantly better than the current choice would be merriamwebster.com or oxforddictionaries.com
Here's a workaround. You can use chrome plugin "requestly" and set up rules for replacing the dictionary.com part with your desired website in the URL generated from acrobat.
Farid Farahani commented
I was looking for such thing. It shouldn't be that much difficult to add this option in the next versions.
Thanks in advance Adobe!!!
RUOZHOU LIN commented
Totally agree with you! How this issue can be solved in the near future!
Hossein Mohtashami commented