Sindon (literally a cotton cloth), a word having several ecclesiastical meanings:
1. A napkin;
2. A cloth for holding and enclosing the bread offered for the holy eucharist in the Eastern church;
3. A term sometimes applied to the communion cloth which the faithful, in certain parts of the Church, hold before them when partaking of the sacrament;
4. In the Liturgy of the Church of Milan this term is applied to the linen cloth which covers the altar slab.