1. worn, damaged, or reduced by gnawing or gradual erosion

1. past participle of gnaw; worn away or bitten gradually by persistent chewing or nibbling

Examples

• The dog had gnawn on the bone for hours.
• The rope was gnawn at the edges where the mice had been active.
• Years of worry had gnawn away at his confidence.
• The gnawn wood showed deep tooth marks from the beaver.
• She found a gnawn pencil on the desk.
• The fabric was gnawn by moths in the storage box.