Explanatory

a.

1.

Serving to explain; containing explanation; as explanatory notes.

Adj.

1.

explanatory - serving or intended to explain or make clear; "explanatory notes"; "an explanatory paragraph"

allegorizing, annotative, clarifying, critical, demonstrative, demythologizing, descriptive, discursive, editorial, elucidative, enlightening, euhemeristic, exegetic, exegetical, exemplificative, explaining, explicative, explicatory, expositional, expositive, expository, glossarial, illuminating, illuminative, illustrative, interpretative, interpretive, rationalistic, rationalizing, revelatory, scholiastic