pelvimetry

from WordNet (r) 3.0 (2006)
pelvimetry
    n 1: measurement of the dimensions of the bony birth canal (to
         determine whether vaginal birth is possible)
    
from The Collaborative International Dictionary of English v.0.48
Pelvimetry \Pel*vim"e*try\, n. [Pelvis + -metry.] (Med.)
   The measurement of the pelvis.
   [Webster 1913 Suppl.]
    

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