Definition of chiliad in English:
1A group of a thousand things.
- You made my life one breathless thrill then left me on this lonely bed, with no instructions how to fill the chiliads of hours ahead.
- One of my first projects was to turn my attention to the decreasing frequency of primes, to which end I counted the primes in several chiliads and recorded the results on the attached white pages.
- Gauss (who was a prodigious calculator) told a friend that whenever he had a spare 15 minutes he would spend it in counting the primes in a ‘chiliad’.
1.1A thousand years; a millennium.