Pronunciation: (glō-mer'yu-lus, glu-),[key] —n., —pl.-liPronunciation: (-lī").[key]Anat. 1. a compact cluster of capillaries.
2. Also called Malpighian tuft. a tuft of convoluted capillaries in the nephron of a kidney, functioning to remove certain substances from the blood before it flows into the convoluted tubule. Cf. Bowman's capsule, Malpighian corpuscle.