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