museum piece

Từ điển Oxford Advanced Learner 8th

muˈseum piece [museum piece museum pieces] BrE NAmE noun
1. an object that is of enough historical or artistic value to have in a museum
•The vase is a stunning museum piece from the 18th century.
2. (humorous)a thing or person that is old-fashioned, or old and no longer useful
•That car of his is a real museum piece.