# Rule of outlet

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.

Tagged: r

Read Also:

- Rule-of-the-road
noun, Nautical. 1. any of the regulations concerning the safe handling of vessels under way with respect to one another, imposed by a government on ships in its own waters or upon its own ships on the high seas.

- Rule-of-three
noun, Mathematics. 1. the method of finding the fourth term in a proportion when three terms are given. rule of three noun 1. a mathematical rule asserting that the value of one unknown quantity in a proportion is found by multiplying the denominator of each ratio by the numerator of the other

- Rule-of-thumb
noun 1. a general or approximate principle, procedure, or rule based on experience or practice, as opposed to a specific, scientific calculation or estimate. 2. a rough, practical method of procedure. rule of thumb noun 1. a rough and practical approach, based on experience, rather than a scientific or precise one based on theory (as […]

- Rulership
noun 1. the act or fact of ruling or the state of being ruled: Foreign rulership of the country began in the 18th century.