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bartholomew's rule of fourths in Medicine

Bartholomew's rule of fourths

(bär-thŏlə-myōōz′)
n.
  1. A rule for determining the duration of pregnancy by measuring the height of the fundus of the uterus above the pubic symphysis.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.