流域りゅういきryuuiki流りゅう域いき流りゅう域いきShow answer(Space)Suspend(@)流りゅう域いき流りゅう域いきryuuikiCommonRelative commonness of this word, based on various sources (incl. newspapers)CommonNoun (common)Noun (common) (futsuumeishi)Noun (common)drainage basin; catchment basin; river basin; watershed; valley流りゅう域いき流りゅう域いきryuuikidrainage basin; catchment basin; valleyWhat does 流域 mean in English?drainage basin; catchment basin; river basin; watershed; valley(n)Search the picture dictionary for 流域