zeta sedimentation ratio
The ratio of the zetacrit to the hematocrit, used as an indicator of the red blood cell sedimentation rate.
Why Was Z Removed From The Alphabet (And Then Put Back)?Z’s history includes a time when it was so infrequently used that it was removed from the alphabet altogether.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.