A tsunami is a large ocean wave that is caused by sudden motion on the ocean floor.

tsunami definition: The definition of a tsunami is a large sea wave caused by an earthquake, landslide or other disturbance under the ocean. Learn more. tsunami (plural tsunami or tsunamis) A very large and destructive wave, generally caused by a tremendous disturbance in the ocean, such as an undersea earthquake or volcanic eruption. In contrast to "ordinary" impulse-type tsunami sources, a traveling atmospheric disturbance normally interacts with the ocean over a limited period of time (from several minutes to … No unambiguous and widely accepted definition currently exists for the term ‘mega-tsunami’. The term "tsunami" is a borrowing from the Japanese tsunami 津波, meaning "harbour wave".For the plural, one can either follow ordinary English practice and add an s, or use an invariable plural as in the Japanese. Definition of tsunami noun in Oxford Advanced Learner's Dictionary.

Le terme tsunami nous vient du japonais tsu nami qui signifie littéralement « vague du port ». See more. tsunami Seismic sea waves Geomedicine A superwave that can circle an island, and pound the otherwise protected leeward side with ↑ velocity–up to 365 km/hr or 225 miles/hr; waves can reach a height of 25+ meters; the Boxing Day (2004) tsunami centered in Indonesia claimed 300,000 lives. A meteotsunami or meteorological tsunami is a tsunami-like sea wave of meteorological origin. This is in spite of the rapidly growing popularity of the expression in the scientific literature, especially in recent years following the devastation wrought by the 2004 Indian Ocean and 2011 Tohoku-oki tsunamis. Meteotsunamis are generated when rapid changes in barometric pressure cause the displacement of a body of water. Tsunami definition: A tsunami is a very large wave, often caused by an earthquake, that flows onto the land... | Meaning, pronunciation, translations and examples This sudden motion could be an earthquake, a powerful volcanic eruption, or an underwater landslide.The impact of a large meteorite could also cause a tsunami. Il désigne ainsi généralement un phénomène de type raz de marée. (figuratively) A large … Cf Tidal waves. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Tsunamic definition, an unusually large sea wave produced by a seaquake or undersea volcanic eruption. See Geological disaster. Tsunami are usually a series of waves, or wave train. Tsunami definition is - a great sea wave produced especially by submarine earth movement or volcanic eruption : tidal wave. tsunami meaning: 1. an extremely large wave caused by a violent movement of the earth under the sea 2. an extremely…. Tsunamis travel across the open ocean at great speeds and build into large deadly waves in the shallow water of a shoreline.