rule of outlet
n.
A rule for determining whether the pelvic outlet will allow the passage of a normal-sized fetus by calculating whether the sum of the posterior sagittal diameter and the transverse diameter of the outlet equal at least 15 centimeters.
Words nearby rule of outlet
rule joint,
rule of bigeminy,
rule of eleven,
rule of engagement,
rule of law,
rule of outlet,
rule of the road,
rule of three,
rule of thumb,
rule out,
rule the roost