In latin means " the 34 centuries; Form is in genitive case, that usually indicates belonging, and sintacticamente complements determinants. See: In saecula saeculorum.
seculorum is incorrectly written, and should be written as "Saeculorum" being its meaning: The correct term is saeculorum. It is a latin word which means 40 centuries; in plural ). It is the plural of saeculum which means century.