reniculus

re·nic·u·lus

, pl.

re·nic·u·li

(rĕ-nik'yū-lŭs, -lī),
2. A lobe of the human fetal kidney and that of some lower animals in which fibrous septa subdivide the organ. Synonym(s): renculus (2) , renunculus (2)
[L. dim. of ren, kidney]