supersedesu·per·sede /ˌsuːpəˈsiːd-pər-/ verb [transitiveT]1if a law, instruction, rule etc supersedes another, it takes its placeTheagreement supersedes a similar contract made five years ago.
The court ruled that thelaw was superseded by a 1985 statute.
2if a product, method, or idea supersedes another one, it is used instead of the old product or idea because it is more modern, effective etcThis model has recently been superseded by a newer version made of recycled polyethylene.