1、桂(gui)圓又(you)叫(jiao)(jiao)龍(long)(long)(long)眼(yan)(yan)，其實兩者就是同一種東西，沒有(you)什(shen)么差別(bie)的。叫(jiao)(jiao)桂(gui)圓是因(yin)為(wei)建時代(dai)由(you)于龍(long)(long)(long)眼(yan)(yan)是犯忌(ji)，所以(yi)為(wei)了避諱就不(bu)叫(jiao)(jiao)龍(long)(long)(long)眼(yan)(yan)。又(you)因(yin)為(wei)龍(long)(long)(long)眼(yan)(yan)是廣(guang)西（桂(gui)）產的比(bi)較多，又(you)圓圓的，所以(yi)大家就叫(jiao)(jiao)桂(gui)圓了。沒有(you)實質(zhi)上(shang)的區(qu)別(bie)，實際上(shang)是同一個水果。

2、一(yi)般(ban)把(ba)龍(long)(long)眼(yan)曬成干(gan)，食用或藥用叫(jiao)桂圓；新鮮的(de)果實(shi)，剝(bo)殼(ke)折枝后食用叫(jiao)龍(long)(long)眼(yan)。

3、如果龍(long)眼帶殼帶核曬(shai)干(gan)后(hou)，叫龍(long)眼干(gan)；如果去(qu)殼去(qu)核，只留果肉，曬(shai)干(gan)后(hou)就(jiu)叫桂(gui)圓。