Last Updated
：2025/12/01
mega-anna
Noun
form-of
plural
Japanese Meaning
『mega-anna』は『mega-annum』の複数形です。『mega-annum』は通常、百万年（1,000,000年）を意味する単位であり、その複数形として複数の百万年単位の期間を指すために用いられます。
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mega-anna
Geologists estimated that the mountain range formed over hundreds of mega-anna.
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Geologists estimated that the mountain range formed over hundreds of mega-anna.
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