A rhythm method of natural birth control.

The body of principles and practices used by scholars to make their claims about the world as valid and trustworthy as possible, and to make them known to the scholarly public.

A method used by philosophers involving such elements as skepticism and methodic doubt, argumentation, and presentation of arguments for criticism by other philosophers.

(historiography) The techniques and guidelines by which historians use primary sources and other evidence to research and then to write history.

(mathematics) The use of a cyclic algorithm to solve indeterminate quadratic equations.

(astrophysics, astronomy) A method to develop triaxial equilibrium kinematic models of actual galaxies (without knowledge of the motions of the component elements of the actual galaxies) using a grid and assigning masses and orbits, simulating gravitational evolution with the resulting estimated distributions, to compare with the actual galaxy, until a model results in similarity with the actual galaxy.

Alternative form of Schwarzschild's method

The use of twilight sleep to alleviate pain during childbirth.

(mathematical analysis) A procedure used to find a particular solution to certain types of inhomogeneous ordinary differential equation.

(computing) A method or means, usually a software or hardware component of a mainframe, to access data on an external storage device.