What do a.m. and p.m. stand for?


[ham-er-stohn] /ˈhæm ərˌstoʊn/
noun, Archaeology
an ancient stone tool used as a hammer, as for chipping flint, processing food, or breaking up bones. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for hammerstone
  • All of the replicated artifacts were manufactured using one of two methods, antler or hammerstone.
  • The pits were also ideal for holding acorns or hickory nuts so that they could be cracked with a hammerstone.
  • He started by using a hammerstone to knock away many pieces called flakes from a second stone that would become the spear point.
  • Some slight pitting from hammerstone use is evident on the edge of the end opposite that with the facial abrasion.
  • Ends heavily pecked, indicating use as a hammerstone.
British Dictionary definitions for hammerstone


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
Cite This Source
hammerstone in Science
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for hammerstone

Few English speakers likely know this word

Word Value for hammerstone

Scrabble Words With Friends