| 释义 |
n.A material excreted in the urine only when its concentration in the plasma exceeds a certain value. Words nearby threshold substancethreshing machine, threshold, threshold agreement, threshold limit value, threshold stimulus, threshold substance, thresh out, threw, thrice, thrift, thriftless The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |