[gloh-mer-yuh-luh s, gluh-]
- a compact cluster of capillaries.
- 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.
Origin of glomerulus
1855–60; < New Latin, equivalent to Latin glomer- (stem of glomus) ball-shaped mass + -ulus -ule
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for glomerular
Historical Examples of glomerular
The glomerular capsules are much distended, and numerous leucocytes are discernible throughout the organ.Poisons: Their Effects and Detection
Alexander Wynter Blyth
- a knot of blood vessels in the kidney projecting into the capsular end of a urine-secreting tubule
- any cluster or coil of blood vessels, nerve fibres, etc, in the body
Word Origin for glomerulus
C18: from New Latin, diminutive of glomus ball
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- Relating to or affecting a glomerulus or the glomeruli.
- 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.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A knot of highly permeable capillaries located within the Bowman's capsule of a nephron. Waste products are filtered from the blood in the glomerulus, initiating the process of urine formation.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.