ulno-
1 
a combining form of ulna:
ulnoradial.
a1843 Encycl. Metrop. (1845) VII. 327/2In the Penguins, the Ulno-carpal bone..is largely developed. 
ulno-
combining form 
Etymology: New Latin ulna 
 : ulnar and 
< ulnocarpal >
< ulnoradial >
< ulnocarpal >
< ulnoradial >