Code coverage means, how well your test set is covering your source code. i.e. to what extent is the source code covered by the set of Test cases. As mentioned in above answers, there are various coverage criteria, like paths, conditions, functions, statements, etc.
Chiasmus. Definition: Chiasmus is a specific type of parallelism. It consists of two parallel phrases in which corresponding words or phrases are placed in the opposite order.
Parallelism is the use of components in a sentence that are grammatically the same; or similar in their construction, sound, meaning or meter.Parallelism examples are found in literary works as well as in ordinary conversations.arallelism examples are found in literary works as well as in ordinary conversations.