Improve osterka meaning in English

Is there any meaning of the word osterka that needs an edit? Please click that meaning to rewrite it.

ostraca

Is there any meaning of the word osterka that needs to be removed from the list? Please click that meaning to mark it for deletion.

ostraca

Do you want to add a new meaning, definition, and a sentence of the word osterka? Please feel free to add.