[mod.ule] n [L modulus] (ca. 1628) 1: a standard or unit of measurement
2: the size of some one part taken as a unit of measure by which the proportions of an architectural composition are regulated 3 a: any in a series of standardized units for use together: as (1): a unit of furniture or architecture (2): an educational unit which covers a single subject or topic b: a usu. packaged functional assembly of electronic components for use with other such assemblies
4: an independently-operable unit that is a part of the total structure of a space vehicle
5. a: a subset of an additive group that is also a group under addition b: a mathematical set that is a commutative group under addition and that is closed under multiplication which is distributive from the left or right or both by elements of a ring and for which a(bx) equals (ab)x or (xb)a equals x(ba) or both where a and b are elements of the ring and x belongs to the set