module

Universal Words noun 1 a unit that can form part of a course of study, especially at a college or university in Britain: The course consists of ten core modules and five optional modules. 2 (computing) a unit of a computer system or program that has a particular function: software modules * a tutorial module 3 one of a set of separate parts or units that can be joined together to make a machine, a piece of furniture, a building, etc. 4 a unit of a spacecraft that can function independently of the main part: the lunar module