'bimillenary' definitions:

Definition of 'bimillenary'

(from WordNet)
noun
The 2000th anniversary (or the celebration of it) [syn: bimillennium, bimillenary]
noun
A span of 2000 years [syn: bimillennium, bimillenary]

Definition of 'bimillenary'

From: GCIDE
  • bimillenary \bimillenary\ n. a span of 2000 years.
  • Syn: bimillennium. [WordNet 1.5]