This kind of dictionary include word related to the causes,nature and effects of disease.It include all the word related to this .Each disease contain their effect so that it is easy to understand it through this dictionary.It keep on growing your knowledge.It contain search option with short description .It is very helpful and friendly.

Make sure that third-party apps are allowed on your device: go to Menu->Settings->Security-> and check "Unknown Sources"

Tap the APK file. Allow the app any required permissions it asks for. Then, at the bottom of the installer window, click INSTALL.

You'll see a confirmation the app is installed. Now you'll see the app available in your list of installed apps.