hyposthenuria
[hī-pŏs′thə-nur′ē-ə]
n.
Excretion of urine of low specific gravity due to an inability of the tubules of the kidneys to produce concentrated urine.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.