Byb asks: Do we have to icebox these leftovers?

The long necked one retorts: Be a good guy and get your wife something newer than an Icebox...There are these new electric refrigerators.

Icebox is still used to mean refrigerator. We still dial touch-tone phones. Some of us older folks will remember when record albums were still albums, that is, collections of records in a notebook style binding with individual "pages". I heard another one today, but can't remember what it was. What I'm getting at is words that don't really describe the referent as well as they used to because the referent has changed although the function has remained the same. Is there a word to describe this kind of word?