Explication and Explained

noun

• The act of making clear or removing obscurity from the meaning of a word or symbol or expression etc..
• A detailed explanation of the meaning of something. .

• (n.) The act of opening, unfolding or explaining; explanation; exposition; interpretation.
• (n.) The sense given by an expositor.

Explained is the relative reduction in the variation of variable Y that can be attributed to a knowledge of variable X and its relationship to Y.