Definition of コロンブス交換 (コロンブスこうかん)
こうかん
                        コロンブス交換
コロンブスこうかん
koronbusukoukan
noun
•
        
Columbian exchange, widespread exchange of animals, plants, culture, disease, and ideas between the Old and New Worlds
Related Kanji
| 交 | mingle, mixing, association, coming & going | 
| 換 | interchange, period, change, convert, replace, renew |