理り化か学がく研けん究きゅう所じょりかがくけんきゅうじょFreq.FrequencyTop 50,000じ字FuriganaMeanings1nounInstitute of Physical and Chemical Research; RIKENorganization nameOfficial name of a major Japanese research institute, commonly referred to as RIKEN.理り化か学がく研けん究きゅう所じょは埼さい玉たま県けん和わ光こう市しに
