海かい洋よう温おん度ど差さ発はつ電でんMeaningsNoun1. ocean thermal energy conversionKanji used海sea洋ocean温warm (to the touch)度degrees差difference発let out電electricComposed of海かい洋ようocean; seaNoun温おん度どtemperatureNoun差さdifference; variationNoun発はつ電でんgeneration of electricity; power generation; sending a telegram (now usu. for congratulations, condolences, etc.); telegraphingNoun