Definitions

1. noun

A period of two thousand years.

“The city was an important cultural center during the bimillennium of the Roman Empire.”

2. noun

A two-thousand-year period, used especially in dating archaeological finds.

“The artifacts date back to the bimillennium of the ancient civilization.”

3. noun

A period of two thousand years, used especially in counting centuries.

“The bimillennium of the Roman Empire marked the end of an era.”