potsherdnoun [ C ]
/ˈpɒt.ʃɜːd//ˈpɑːt.ʃɜ˞ːd/a broken piece of an object made of baked clay, especially one found by an archaeologist (= someone who studies the buildings, graves, objects, etc. of people who lived in the past):
The pots were compared with samples of potsherds dug from ancient Pueblo Indian sites.