Triodion

Triod Postnaja print of Swietopelk Printery, Cracow 1491.|thumb|right

The Triodion (, ; , ; , ), also called the Lenten Triodion (, ), is a liturgical book used by the Eastern Orthodox and Byzantine Catholic churches. The book contains the propers for the fasting period preceding Pascha (Easter) and for the weeks leading up to the fast.