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Noun: triennium (triennia,trienniums)  trI'e-nee-um
  1. A period of three years

Derived forms: trienniums, triennia

Nearest

Tridacna gigas
Tridacnidae
Trident
trident
Tridentine
tridymite
tried
tried and true
triennial
triennially
triennium
trier
trifecta
triffid
trifid
trifid beggar-ticks
trifid bur marigold
trifle
trifle away
trifler
trifling