- a separable component, frequently one that is interchangeable with others, for assembly into units of differing size, complexity, or function.
- any of the individual, self-contained segments of a spacecraft, designed to perform a particular task: the spacecraft's command module; a lunar module.
- a standard or unit for measuring.
- a selected unit of measure, ranging in size from a few inches to several feet, used as a basis for the planning and standardization of building materials.
- an Abelian group with a set of left or right operators forming a ring such that for any two operators and any group element the result of having the first operator act on the element, giving a second element, and the second operator act on the second element is equal to the result of having a single operator, formed by adding or multiplying the two operators, act on the first element.
- Computers.
- part of a program that performs a distinct function.
- an interchangeable, plug-in hardware unit.
- a self-contained unit or item, such as an assembly of electronic components and associated wiring or a segment of computer software, which itself performs a defined task and can be linked with other such units to form a larger system
- a standard unit of measure, esp one used to coordinate the dimensions of buildings and components; in classical architecture, half the diameter of a column at the base of the shaft
- a standardized unit designed to be added to or used as part of an arrangement of similar units, as in furniture
- any of several self-contained separable units making up a spacecraft or launch vehicle, each of which has one or more specified tasks
- a short course of study, esp of a vocational or technical subject, that together with other such completed courses can count towards a particular qualification
