museum /mjuːˈziːəm/noun 1verb 2forms 4 noun1 •a place that cares for things of great value and lets people come to see them and learnThey're opening a new coin exhibition at the local museum. verb2 •To place in a museum.I use daily those books that for others are museumed. The glass case approach depresses me, makes books into porcelain, guts them of what they are. — 2013 •(informal) To visit museums.I told her I'd do just one visit to start; I don't really have time to do a lot of museuming. — 2014 formsmuseumed · museuming · museums · musea