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n. pl. cen·tu·ries
a. A period of 100 years.
b. Each of the successive periods of 100 years before or since the advent of the Christian era.
a. A unit of the Roman army originally consisting of 100 men.
b. One of the 193 electoral divisions of the Roman people.
3. A group of 100 things.

[Latin centuria, a group of a hundred, from centum, hundred; see dekm̥ in Indo-European roots.]

cen·tu′ri·al adj.
cen′tu·ry·long′ adj.


1. (Military) of or relating to a Roman century
2. rare involving a period of 100 years
References in periodicals archive ?
The system was based on the Roman Centurial Assembly system that divided Roman men according to wealth into groups of 100.
Finally, in 1582, Pope Gregory mandated a calendrical correction, the Gregorian calendar, which eliminated leap days in centurial years (e.
To keep things in alignment going forward, the Gregorian calendar allows a centurial year, like 1900 or 2000, to be a leap year only if it is divisible by 400.