isomer
/ˈaɪsəʊmə(r)/noun
1
- Chemistry each of two or more compounds with the same formula but a different arrangement of atoms in the molecule and different properties【化】同分异构体。
2
- Physics each of two or more atomic nuclei that have the same atomic number and the same mass number but different energy states.【物理】同质异能素。
派生词
isomeric
adjectiveisomerism
nounisomerize
（亦作-ise）verb词源
mid 19th cent.: from Greek isomerēs 'sharing equally', from isos 'equal' + meros 'a share'.