As the kids would say, there's a law for that. Specifically, the Museums Act (though this act in particular covers only Canada's big federal museums, but you get the picture)
"museum means a corporation established by Part I; (musée)"
"museum material means objects and documentary material, regardless of medium or form, of a type normally kept by a museum for reference or exhibition purposes. (matériel de musée)"
The closest federal museum that matched the original intent of "the Museum" would likely be the National Museum of Science and Technology, to whit: "The purpose of the National Museum of Science and Technology is to foster scientific and technological literacy throughout Canada by establishing, maintaining and developing a collection of scientific and technological objects, with special but not exclusive reference to Canada, and by demonstrating the products and processes of science and technology and their economic, social and cultural relationships with society."
I think the biggest piece that defines a museum is the curation of a collection over time for a specific purpose with staff who can manage the collection (eg collecting one of everything made in Waterloo Region as they do in Doon). After the abortive first attempt at a museum (as the Waterloo Regional Children's Museum), they repurposed themselves into more of a revolving gallery space with flexible programming. I'm not sure what kind of permanent collection, if any, they might have on site.
To go further, there is the Canadian Museums Association, established in 1947, that can provide more information.
"museum means a corporation established by Part I; (musée)"
"museum material means objects and documentary material, regardless of medium or form, of a type normally kept by a museum for reference or exhibition purposes. (matériel de musée)"
The closest federal museum that matched the original intent of "the Museum" would likely be the National Museum of Science and Technology, to whit: "The purpose of the National Museum of Science and Technology is to foster scientific and technological literacy throughout Canada by establishing, maintaining and developing a collection of scientific and technological objects, with special but not exclusive reference to Canada, and by demonstrating the products and processes of science and technology and their economic, social and cultural relationships with society."
I think the biggest piece that defines a museum is the curation of a collection over time for a specific purpose with staff who can manage the collection (eg collecting one of everything made in Waterloo Region as they do in Doon). After the abortive first attempt at a museum (as the Waterloo Regional Children's Museum), they repurposed themselves into more of a revolving gallery space with flexible programming. I'm not sure what kind of permanent collection, if any, they might have on site.
To go further, there is the Canadian Museums Association, established in 1947, that can provide more information.