Definition of 共通祖先 (きょうつうそせん)
きょうつうそせん
                        共通祖先
きょうつうそせん
kyoutsuusosen
noun
•
        
common ancestor
Related Kanji
| 共 | together, both, neither, all, and, alike, with | 
| 通 | traffic, pass through, avenue, commute, counter for letters, notes, documents, etc. | 
| 祖 | ancestor, pioneer, founder | 
| 先 | before, ahead, previous, future, precedence |