If you are unfamiliar with the terminology
associated with your research topic, consult a subject dictionary. Subject dictionaries
provide definitions or short explanations of the terms and concepts used in a specific
discipline or field.
For example, after looking at an encyclopedia entry on
space stations, there may be terms that are unfamiliar to you such as
"geosynchronous."
Subject dictionaries such as the McGraw-Hill Dictionary of
Scientific and Technical Terms can be used to find a definition of the above term as well
as other terms related to space station technology: