1. a rock carving or drawing made by prehistoric or ancient peoples
Usage: archaeology

Examples

• The archaeologists discovered ancient petroglyphs on the canyon walls.
• Native American petroglyphs can be found throughout the southwestern United States.
• The petroglyph depicted animals and human figures from thousands of years ago.
• Visitors to the national park can view well-preserved petroglyphs along the hiking trail.
• The museum displayed photographs of petroglyphs found in various desert locations.
• Researchers used dating techniques to determine the age of the petroglyphs.