The Language of Biology Biology is a subject that contains a language of its own. The main reason people find it difficult to understand biology (or other sciences) is because of its difficult vocabulary. Scientific vocabulary is actually a mixture of different roots, prefixes and suffixes put together to describe events, body parts, or functions, etc. observed by the individuals studying the process. Below you will find a list of some common prefixes and suffixes and their meanings. Learning the meanings of common terms will be a good introduction to learning biology!