Triennial is a related term of triennium.
As nouns the difference between triennium and triennial
is that triennium is a period of three years while triennial is a third anniversary.
As an adjective triennial is
happening every three years.
triennium
English
Noun
(en-noun)
A period of three years.
Related terms
* triennial, trieterical
* biennium
* quadrennium
Anagrams
*
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triennial
English
Adjective
(
-)
Happening every three years.
- triennial elections
-
Lasting for three years.
- triennial''' parliaments; a '''triennial reign
- (Howell)
Synonyms
* (rare) trieterical
Related terms
* (noun) triennium
See also
* triennially
Noun
(
en noun)
A third anniversary.
Related terms
* biennial
* triennium
* triannual