plural modules
1
: one of a set of parts that can be connected or combined to build or complete something
factories that build engines, transmissions, brakes, and other modules for cars
(chiefly Brit) This is a modular course of three components, and students can take those three modules in any order.
2
: a part of a computer or computer program that does a particular job
special software modules
a memory module for storing information
3
: a part of a space vehicle that can work alone
the spacecraft's command module [=the main part of a spacecraft]
a lunar module [=a space vehicle used to land on the moon]
Cite this Entry
“Module.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/module. Accessed 28 Jul. 2026.
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