allotropy
/əˈlɒtrəpɪ/noun
mass noun
- Chemistry the existence of two or more different physical forms of a chemical element【化】同素异形现象。
派生词
allotropic
adjective词源
mid 19th cent.: from Greek allotropos 'of another form'， from allo- 'other'+ tropos 'manner' （from trepein 'to turn'）.