Diğer Dillerde
Féminin pluriel de vicennal.
vicennial, occurring once every twenty years
çekim: çoğul vicennali
köken: From Latin vīcennālis, from vīcennium + -ālis, from vīcennis (“20-year”) + -ium, from vīciēs (“twenty times”) + annus (“year”) + -is.