Definition: 'Crown-rump (length)'
crown-rump (length) (CR, CRL)Type: Term
1. a measurement from the cranial vertex (topmost part) to the midpoint between the apices of the buttocks (sitting height) of an embryo during the fourth to eighth week or fetus, which permits approximation of embryonic or fetal age.
The definition information for crown-rump (length) is provided by Stedman's. You can search our medical dictionary here.
Stedman's, part of Lippincott Williams & Wilkins, provides a comprehensive line of health-science publications for healthcare professionals and medical students.