jejun-
1 
variant of jejuno- before a vowel:
jejunectomy.
Related Word
- jejunectomy
jejun-
combining form 
or jejuno-
Etymology: jejunum 
1. : jejunum 
< jejunectomy >
2. : jejunal and 
< jejunoduodenal >
or jejuno-
1.
< jejunectomy >
2.
< jejunoduodenal >