Adumbration

Ad·um·bra·tion

Adumbration

n.
  1. The act of adumbrating, or shadowing forth.
  2. A faint sketch; an outline; an imperfect portrayal or representation of a thing.
    Elegant adumbrations of sacred truth.
    — Bp. Horsley.
  3. The shadow or outlines of a figure. (Her.)