glomerulus glo·mer·u·lus (glō-měr'yə-ləs)
n. pl. glo·mer·u·li (-lī')
A small cluster or intertwined mass.
A tuft of capillaries situated within a Bowman's capsule at the end of a renal tubule in the vertebrate kidney that filters waste products from the blood and thus initiates urine formation.
The twisted secretory portion of a sweat gland.
A nerve ending consisting of a cluster of dendritic ramifications and axon terminals surrounded by a glial sheath.