-on
/ɒn/suffix
Physics, Biochemistry, & Chemistry forming nouns 【物理, 生化, 化】 ［构成名词］
1
- denoting subatomic particles or quanta表示“亚原子”; “量子”：
neutron
photon.
2
- denoting molecular units表示“分子单位”：
codon.
3
- denoting substances表示“物质”：
interferon.
词源
sense 1 originally in electron, from ION, influenced (as in sense 2) by Greek on 'being'; sense 3 is on the pattern of words such as cotton or from German -on.