実じっ験けん段だん階かいMeaningsNounNo-adjective1. experimental stage; experimental phaseKanji used実real験verification段step階floor (of a building)Composed of実じっ験けんexperiment; experimentationNoun段だん階かいstage; step; phase; level; rank; grade; gradation; order; stairsNounExamples1それはまだ実じっ験けん段だん階かいにあります。It is still in the testing stage.