QuickDic app
QuickDic is Science & Education application that is open source under the Apache-2.0 license. Resurrection of https://f-droid.org/packages/com.hughes.android.dictionary to a new maintainer. Uses datafrom Wiktionary and Beolingus to generate dictionary files that can be used
offline. These can be downloaded from within the app. These can also be
generated automatically, though documentation for the process is currently
missing.