Definitions from Wiktionary (mega-annum)
▸ noun: Synonym of megayear: a period of 1 million years.
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▸ noun: Synonym of megayear: a period of 1 million years.
Similar:
millenary,
centimillennium,
annum,
yearthousand,
centennium,
decimillennium,
millennium,
decennium,
centenary,
yard,
more...
Opposite:
▸ Words similar to mega-annum
▸ Usage examples for mega-annum
▸ Idioms related to mega-annum
▸ Wikipedia articles (New!)
▸ Popular adjectives describing mega-annum
▸ Words that often appear near mega-annum
▸ Rhymes of mega-annum
▸ Invented words related to mega-annum