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.
strabismus in which there is manifest deviation of the visual axis of one eye toward that of the other eye, resulting in diplopia; called also cross-eye and convergent strabismus. adj., adj esotropÂ´ic.