It's one thing to have an encyclopedia and quite another to have software that combines a couple of those. Such software usually gives you more options and better and easier search engine. Check out this software category, read reviews on these education applications, take a pick, and download instantly.
Olson Software Limited
Word Magic Software
Sekai Learning Systems
Traductor-Gratis, Andres Carizza
Mediapro Education Technology Private Limited
Cleantouch Software Corp
Cleantouch Software Corporation