illucidation

Noun

elucidation (countable and uncountable, plural elucidations)

1. A making clear; the act of elucidating or that which elucidates, as an explanation, an exposition, an illustration
   • The essay might, undoubtedly, have been rendered much more complete by a collection of a greater number of facts in elucidation of the general argument.1798, Thomas Malthus., An Essay on the Principle of Population