- supersede su‧per‧sede [ˌsuːpəˈsiːd ǁ -pər-] verb [transitive]1. if a law, instruction, rule etc supersedes another, it takes its place:
• The agreement supersedes a similar contract made five years ago.
• The court ruled that the law was superseded by a 1985 statute.2. if a product, method, or idea supersedes another one, it is used instead of the old product or idea because it is more modern, effective etc:
• This model has recently been superseded by a newer version made of recycled polyethylene.
* * *supersede UK US /ˌsuːpəˈsiːd/ verb [T]► if a law, rule, agreement, etc. supersedes another, it replaces it: »
The newly signed deal supersedes the current contract and runs to the end of 2012.be superseded by sth »
It is important to ascertain that the documents in your possession have not been superseded by new laws.supersede a law/regulation/sb's authority »
If the Bill is passed, it will supersede the Fed's authority.► if a process, system, or product supersedes another, it replaces it because it is more modern or becomes more popular: »
The internet seems to have superseded every mode of communication ever invented!be superseded by sth »
Phones using 2.5G technology were superseded by third-generation (3G) phones.
Financial and business terms. 2012.