burin /būˈrin/

1. A kind of chisel of tempered steel, used in copper engraving
2. The distinctive style of an engraver
3. A palaeolithic flint tool

• heartless
• heartlessly
• heartlessness
• heartlessnesses
• heartlet
• heartlets
• heartling
• heartlings
• heart-lung machine
• heart-lung machines
• heartly
• heart murmur
• heart murmurs
• ink-feeds
• ink-fish
• inkholder
• inkholders
• inkhorn
• inkhorn-mate
• inkhorn-mates
• inkhorns
• inkhosi
• inkier
• inkiest
• ink in