ham·mer·stone 
(hămər-stōn′)
(hămər-stōn′)n.
Archaeology
Archaeology
A stone or cobble used as a pounding or pecking tool.
- proso millet
- prosopagnosia
- prosopagnosiac
- prosopagnosic
- prosopographical
- prosopography
- prosopopeia
- prosopopoeia
- prospect
- prospective
- prospectively
- prospector
- prospectus
- prosper
- prosperity
- prosperous
- prosperously
- prosperousness
- prost
- prost
- prostacyclin
- prostaglandin
- prostate
- prostatectomy
- prostate gland