noun
triennale; triennial art exhibition
Refers to a large-scale international art exhibition held every three years, similar to a biennale but on a three-year cycle. Often used in proper names like 横浜トリエンナーレ.
from Italian
See also: ビエンナーレ
横浜トリエンナーレは三年に一度開催される現代アートの祭典です。
The Yokohama Triennale is a contemporary art festival held once every three years.
ビエンナーレ is a biennale (every two years), while トリエンナーレ is a triennale (every three years).
Borrowed from Italian 'triennale', meaning 'triennial'.