symmetry
/ˈsɪmɪtrɪ/noun
(pl. -ies)［mass noun］
1- the quality of being made up of exactly similar parts facing each other or around an axis对称（性）：
this series has a line of symmetry through its centre
这个系列在中间有一条对称线
a crystal structure with hexagonal symmetry.
六边对称的结晶体。
1.1
- correct or pleasing proportion of the parts of a thing匀称：
an overall symmetry making the poem pleasant to the ear.
使这首诗读起来十分悦耳的总体对仗。
1.2
- similarity or exact correspondence between different things（不同事物之间的）对等（或相似）：
families where there is symmetry between husband and wife on the paid job dimension
丈夫和妻子工资水平相差无几的家庭
count noun history sometimes exhibits weird symmetries between events.历史事件有时候表现出令人不可思议的相似性。
1.3
- count noun Physics & Mathematics a law or operation where a physical property or process has an equivalence in two or more directions【物理, 数】对称。
派生词
symmetrize
（亦作-ise）verb词源
mid 16th cent. (denoting proportion)： from French symétrie or Latin symmetria, from Greek, from sun- 'with' + metron 'measure'.