exertion
Cross references: 1. effort ex.er.tion \ig-'z*r-sh*n\ n : the act or an instance of exerting; esp : a laborious or percept ible effort
Cross references: 1. effort ex.er.tion \ig-'z*r-sh*n\ n : the act or an instance of exerting; esp : a laborious or percept ible effort