空くう中ちゅう浮ふ遊ゆう生せい物ぶつMeaningsNoun1. aeroplanktonKanji used空empty air中in浮float遊play生life物thingComposed of空くう中ちゅう(in) the air; midair; skyNoun浮ふ遊ゆうfloating; drifting; suspensionNoun生せい物ぶつliving thing; organism; creature; life; biologyNoun