In rhetoric terms the difference between appositio and epexegesis
is that appositio is addition of an element not syntactically required for purpose of description or explanation while epexegesis is an additional explanation or explanatory material.
appositio
English
Noun
(rhetoric) Addition of an element not syntactically required for purpose of description or explanation.
See also
* parenthetical
* parenthesis
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epexegesis
English
Noun
(epexegeses)
(rhetoric) An additional explanation or explanatory material.
See also
* exegesis
References
* The American Heritage® Dictionary of the English Language, Fourth Edition
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