triennial
trie
ˈtraɪɛ
traie
nnial
niəl
niēl
perennialbiennialcentennialmillennial

Definition & Meaning of "triennial"in English

Triennial
01

the 300th anniversary (or the celebration of it) 

Grammatical Information
Animacy status
Abstract
Composition
Compound
Countable
Plural form
triennials
triennial
01

taking place every three years 

Grammatical Information
Composition
Compound
relational
ungradable
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