Module

n. [Fr. module, It. & Sp. modulo, from Lat. modulus, a small measure, diminutive of modus. See MODE.]

1. A model or representation.
2. (Arch.) The size of some one part, as the diameter or semi-diameter of the base of a shaft, taken as a unit of measure by which the proportions of the other parts of the composition are regulated: generally, for columns, the semi-diameter is taken, divided into thirty parts, called minutes, though, often, the diameter, divided into sixty minutes; and any part is said to be so many modules and minutes in height, breadth, or projection.