A Yiddish title for an ample linen or cotton fiber robe which orthodox Jews wear on three solemn occasions, particularly, at nuptial ceremonies (by the bridegroom); at seder service, from the first couple of evenings of Passover (by the master of ceremonies); as well as on the Day of Atonement. Pious Jews will also be buried dressed up in a kittel.
How would you define kittel?