adjective
modular
MAH-juh-ler/ˈmɑːdʒələr/
Made from standardized units that can be combined or separated.
The modular bookshelf consists of matching cubes that can be removed and replaced.

Etymology
The “small measure” behind modular connects measurement with the unit used in a larger arrangement. The adjective came to describe things composed of interchangeable units.
In context
the speedy disassembly of the Porta Mill's modular components makes it easy to store.
More examples
- The modular shelves let us add storage as our collection grows.
- Workers connect the standardized sections to build a modular classroom.
- The software's modular design lets developers replace one component at a time.
Forms
modular
module noun — A standardized unit in a larger system.
modularity noun — The quality of having independently combinable units.
Similar words
- sectional
- Made in separate sections, which need not be standardized.