/ ˈmɒdjuːl; NAmE ˈmɑːdʒul/ noun
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.
( computing ) a unit of a computer system or program that has a particular function
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.
a unit of a spacecraft that can function independently of the main part :
the lunar module
late 16th cent. (in the senses allotted scale and plan, model ): from French , or from Latin modulus measure, diminutive of modus . Current senses date from the 1950s.