海かい洋よう底ていMeaningsNoun1. ocean floor; sea floor; seabedKanji used海sea洋ocean底bottomPitch accentかいようていComposed of海かい洋ようocean; seaNoun底ていbase (logarithmic, exponential, number system); radix; base (triangle, cone, cylinder, etc.); type; kind; extent; degreeNoun