mod ‧ ule /ˈmɒdjuːl $ ˈmɑːdʒuːl/ BrE AmE noun [countable]
[ Date: 1500-1600 ; Language: Latin ; Origin: modulus 'small measure, rhythm' , from modus ; ⇨ ↑ mode ]
1 . especially British English one of the separate units that a course of study has been divided into. Usually students choose a number of modules to study:
a module in mathematics
You choose five modules in the first year.
2 . technical one of several parts of a piece of computer software that does a particular job
3 . a part of a spacecraft that can be separated from the main part and used for a particular purpose
4 . one of several separate parts that can be combined to form a larger object, such as a machine or building