A measure of length, the twelfth part of an inch.

A subdivision of a standard measure of dimension which is itself subdivided in the same ratio (usually into seconds), e.g. one-sixtieth of a degree…

One-twelfth of an inch; a line. Also, one-tenth of a geometrical inch. (Cent. Dict.)

In systems of fractional numeration (or of weights or measures) having a constant modulus: The… Mathematics. In duodecimals (duodecimals n. at duode…