[ pŏl′ē-ăn′ī′ən ]
Any of multiple anionic sites on proteoglycans in the renal glomeruli that restrict filtration of anionic molecules and facilitate filtration of cationic proteins.
- polyarteritis nodosa,
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.