1. Plural of heelball; a ball of wax and lampblack or similar material used in brass rubbing to transfer impressions of engraved surfaces onto paper.
Usage: Primarily used in the context of brass rubbing, a craft technique.

Examples

• The artist selected several heelballs in different colors for the brass rubbing project.
• Heelballs are essential tools for anyone interested in creating rubbings of memorial brasses.
• She kept a collection of heelballs in her craft kit for outdoor rubbing expeditions.
• The heelballs left clear impressions of the intricate designs on the brass plaques.