complementation
/ˌkɒmplɪmənˈteɪʃən/noun
mass noun
1- the action of complementing something补充; 补足。
1.1
- Grammar all the clause constituents that are governed by a verb, nominalization, or adjective【语法】补语（分句）。
1.2
- Genetics the phenomenon by which the effects of two different non-allelic mutations in a gene are partly or entirely cancelled out when they occur together【遗传】互补。