Defn: The brown crust formed upon a gratinated dish; also, dish itself, as crusts bread, game, or poultry.

GRATINATE
Grat"i*nate, v. t. [F. gratiner, v.i., to form a crust.] (Cookery)

Defn: To cook, as macaroni, in a savory juice or sauce until juice is absorbed and a crisp surface forms.

GRATING
Grat"ing, n. Etym: [See 2d Grate.]

1. A partition, covering, or frame of parallel or cross bars; a latticework resembling a window grate; as, the grating of a prison or convent.

2. (Optics) A system of close equidistant and parallel lines lines or bars, especially lines ruled on a polished surface, used for producing spectra by diffraction; — called also diffraction grating.

3. pl. (Naut.) The strong wooden lattice used to cover a hatch, admitting light and air; also, a movable Lattice used for the flooring of boats.

GRATING
Grat"ing, a. Etym: [See Grate to rub harshy.]

Defn: That grates; making a harsh sound; harsh.
— Grat"ing*ly, adv.

GRATING
Grat"ing, n.