RoscommonPronunciation: /rɒsˈkɒmən/Definition of Roscommon a county in the north central part of the Republic of Ireland, in the province of Connacht; population 58,768 (2006). the county town of Roscommon; population 5,017 (2006). Roscommon in other Oxford dictionaries Definition of Roscommon in the US English dictionary
