A carving or line drawing on rock, especially one made by prehistoric people.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "petroglyph" in a sentence
"About five hectares have been cleared in the zone covered of lush vegetation finding evidences as the petroglyph, which is a stone with engravings and geometric designs that inhabitants denominate the mysterious stone of La Palma."
"Unfortunately this was a day of a huge windstorm, cold gusts to sixty knots or so, so the outdoor activities we'd planned--- aerial tram, petroglyph trail--- had to be canceled in favor of things we could do indoors."
"Stone circles and other petroglyph sites are located in the area."