The<unk> bone (greater multangular bone) is a carpal bone, in what is commonly referred to as the wrist.
The<unk> is distinguished by a deep groove on its palmar surface. It is situated at the radial side of the carpus, between the scaphoid and the first metacarpal bone.
The etymology derives from the Greek trapezion which means "irregular quadrilateral;" literally, "a little table," from trapeza meaning table. Also, from tra- "four" and peza "foot" or "edge."
Trapezium 
Pterygium
Ainhum
Rayon
Maxilla
Adenoid
Fraxinus
Greater burdock