The term tsunami , meaning "harbour wave" in literal translation, comes from the Japanese 津波 , composed of the two kanji 津 ( tsu ) meaning " harbour " and 波 ( nami ), meaning " wave ". (For the plural, one can either follow ordinary English practice and add an s , or use an invariable plural as in the Japanese. [9] ) While not entirely accurate, as tsunami are not restricted to harbours, tsunami is currently the term most widely accepted by geologists and oceanographers. Tidal wave Tsunami aftermath in Aceh , Indonesia , December 2004. Tsunami are sometimes referred to as tidal waves . [10] This once-popular term derives from the most common appearance of tsunami, which is that of an extraordinarily high tidal bore . Tsunami and tides both produce waves of water that move inland, but in the case of tsunami the inland movement of water may be much greater, giving the impression
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