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Definition of Megatsunami
1. Noun. A '''megatsunami''' 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 '''megatsunami''' is used informally for tsunamis with wave heights of 40 m or greater. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Megatsunami
Other Resources:
Bosnian