fixity
/ˈfɪksətɪ/noun
mass noun
- the state of being unchanging or permanent固定性, 稳定性, 恒定性：
the fixity of his stare.
他目光的专注。
词源
mid 17th cent. (denoting the property of a substance of not evaporating or losing weight when heated)： partly from obsolete fix 'fixed, partly from French fixité.