海かい盆ぼんかいぼんじ字FuriganaMeanings1nounocean basinTechnical term in oceanography and earth science for a large depression of the seafloor.太たい平へい洋ようにはいくつかの大おおきな海かい盆ぼんが存そん在ざいする。Several large ocean basins exist in the Pacific Ocean.
