from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A top crust consisting of browned crumbs and butter, often with grated cheese.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The top crust of a dish, consisting of breadcrumbs or grated cheese heated under a grill; the dish itself.
from the GNU version of the Collaborative International Dictionary of English
- n. The brown crust formed upon a gratinated dish; also, the dish itself, as of crusts of bread, game, or poultry.
from The Century Dictionary and Cyclopedia
- n. A browned crust.
- n. Food served in a rich sauce and covered with browned crumbs.
French, from obsolete grater, to scratch, scrape, from Old French; see grate1.(American Heritage® Dictionary of the English Language, Fourth Edition)
From French gratin (Wiktionary)