| Definitions | | megatsunami |
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noun (Plural: megatsunamis or )
- A is a term used by the popular media to describe very large tsunamis, which are very large and destructive waves that are generally caused by a tremendous disturbance in the ocean floor. The term is used informally for tsunamis with wave heights of 40 m or greater.
Translations: - French: mégatsunami , mégatsunamis
- German: Megatsunami
- Italian: megatsunami m (invariable)
- Spanish: megatsunami , megatsunamis
Etymology: From the Greek prefix mega- "large", plus Japanese ææ / ææ (ããã, tsunami), "harbour wave"
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