From Longman Dictionary of Contemporary EnglishOlympiadO‧lym‧pi‧ad /əˈlɪmpi-æd/ noun [countable] formal DSa particular occasion of the modern Olympic Games the 25th Olympiad
Examples from the Corpus
Olympiad• Barcelona was the site of the 25th Olympiad.• They took place every four years, between mid-August and mid-September, and the four-year gap between them was an Olympiad.• Her age and her resilience suggest that she will be around at the top for at least another Olympiad.• the National Science Olympiad• But I have an inkling which sport may be missing from the Olympiad of the future.Origin Olympiad (1300-1400) Old French Olympiade, from Greek, from Olympia 