tonicity
🇬🇧/təʊˈnɪsɪti/ 🇺🇸/toʊˈnɪsəti/the state, condition, or quality of being tonic 强壮
noun [专属名词] 强壮；肌肉弹性；紧张性；调位强度
It is generally believed that the medulla oblongata is the one of the tonicity sources of cardiovascular regulation. 延髓腹外侧区为心血管调节的紧张性冲动来源之一。
