mesocaecum
/ˌmɛsə(ʊ)ˈsiːk(ə)m/(also mesocecum) Anatomy
noun
The mesentery of the caecum (only occasionally present in the adult human).
Origin
Mid 19th century; earliest use found in Todd's Cyclopaedia of Anatomy and Physiology. From meso- + caecum.