- an ancient stone tool used as a hammer, as for chipping flint, processing food, or breaking up bones.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for hammerstone
This seems more likely to be a hammerstone used for chipping.
Hammerstone (L)—a hard pebble showing battering from use as a hammer.
Direct Percussion—flaking flint by striking it directly with a hammerstone or other object.
The hammerstone shown in Fig. 41 was found on the surface near the head of Priest Rapids.
The rim of the bowl is flattened, and this flat surface resembles that of the part of a hammerstone used for pecking.
- a stone used as a hammer in the production of tools during the Acheulian period
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- A hand-held stone or cobble used by hominids perhaps as early as 2.5 million years ago as a crude pounding or pecking tool. Hammerstones were also used by early humans in striking flakes from stone cores to produce core tools.
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