- to break into small fragments or crumbs.
- to fall into small pieces; break or part into small fragments.
- to decay or disintegrate gradually: The ancient walls had crumbled.
- a crumbly or crumbled substance.
- bits of crisp bacon, bread, etc., added to other foods, especially as a topping.
- crumb; particle; fragment.
- to break or be broken into crumbs or fragments
- to fall apart or away
- a baked pudding consisting of a crumbly mixture of flour, fat, and sugar over stewed fruit
