adj.1. Of, relating to, or based on a module or modulus.
2. Constructed out of usually prefabricated units with standardized dimensions, allowing for easy assembly and flexible arrangement: modular furniture; modular homes.
3. Mathematics a. Of or relating to fields having a characteristic greater than zero.
b. Of or relating to structured equivalence classes.
4. Biology Relating to, exhibiting, or being a pattern of growth in which similar morphological units, called modules, are added repeatedly.