/ ˈmɒdjələ(r); NAmE ˈmɑːdʒə-/ adjective
1.
( of a course of study, especially at a British university or college ) consisting of separate units from which students may choose several :
a modular course
2.
( of machines, buildings, etc. ) consisting of separate parts or units that can be joined together
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WORD ORIGIN
late 18th cent.: from modern Latin modularis , from Latin modulus measure, diminutive of modus .