mod‧u‧lar /ˈmɒdjələ, ˈmɒdjʊlə $ ˈmɑːdʒələr/
adjective consisting of separate parts or units which can be put together to form something, often in different combinations:
a modular course in business studies Most colleges now use the modular system of teaching. modular furniture [TahlilGaran] Dictionary of Contemporary English ▲