Dictionary of Zoology Whether you want to learn Zoology, this app Zoology Dictionary should be your perfect choice. This app works offline even without an internet connection. With this app, you can choose to learn a new word everyday using the ‘Word of the Day’ feature. Word of the Day feature in the app tells you a random word to learn each day so that you can learn Zoology better. Zoology is the branch of biology that studies the animal kingdom, including the structure, embryology, evolution,