I'd seen "comminuted" in print and knew that it means a bone broken into more than two pieces.
But I didn't know how to pronounce it.
Google to the rescue!
Meanwhile, my handsome copy of the OED gathers dust on a basement shelf, and my parents' 26-volume Encylopaedia Brittanica serves as a dignifed bit of interior decorating in a hallway.
It's marvelous to be able to look up all sorts of things--in my day, no museum would let you touch a First Folio like this, much less borrow it: