ὄστρακον
ὄστρακον
ὄστρᾰκον, ου, τό,
an earthen vessel, Lat. testa, Ar.
a tile or potsherd, esp. the tablet used in voting (v. ὀστρακίζω), Plat.
a sort of earthenware castanet, Ar.
the hard shell of testaceous animals, as snails, muscles, tortoises, Hhymn., Theocr.