potsherd
noun [ C ] uk/ˈpɒt.ʃɜːd/ us/ˈpɑːt.ʃɜ˞ːd/
（尤指有考古价值的）陶器碎片
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. 把这些壶与从古普韦布洛印第安人遗址中挖出的陶罐样本进行了比较。