Gin’glymoid, a. like a hinge.
Word in the Wild: No wonder you can’t get that oyster open—you’re prying at its ginglymoid side!
This anatomical term is used to describe joints like those in the elbow, knee, fingers, and toes, and it’s usually paired with the word joint—ginglymoid joint. So far as I know it isn’t applied to bivalves at all, but I like my sentence just the same. It’s an awfully fun word to say, so I might have to start applying it in discussions of doors and pianos, too.
You can find a complete listing of the Word Blog’s Vest-Pocket Vocabulary entries and learn more about where they come from here.