頻ひん回かいひんかいMeanings1noun, noun which may take the genitive case particle 'no'frequent; repeatedOften used in medical or technical writing to describe something that occurs many times or at short intervals. Similar to 頻繁 but more formal and less common in everyday speech.See also: 頻繁頻ひん回かいの検けん査さが必ひつ要ようです。