petrogram

noun
UK /ˈpɛtrəɡræm/
US /ˈpɛtroʊɡræm/

A petrogram is a picture or drawing made on rock.

The guide showed us a petrogram of a deer carved into the cave wall.


OTHER MEANINGS

2. A symbol or figure painted on stone by ancient people.

The petrogram used red ochre to show a hunting scene.

3. Any mark or image inscribed on a rock surface.

Scientists recorded each petrogram on the cliff face.

4. A prehistoric drawing used to communicate ideas.

The petrogram may have told a story about the tribe's journey.