Dodec

Dodec is a term that can refer to several different concepts, depending on context. It derives from the Greek dōdeka meaning twelve, and it is commonly used as a prefix to denote the number twelve in science, mathematics, and related fields.

In geometry, dodec- appears in names such as dodecagon (a twelve-sided polygon) and dodecahedron (a twelve-faced regular polyhedron).

In chemistry and biochemistry, the prefix is used for twelve-atom or twelve-unit designs, for example dodecane, a straight-chain alkane with twelve carbon atoms, and dodecamer, a molecular complex consisting of twelve subunits.

In music theory, dodecaphony or twelve-tone technique refers to a method of composition that uses all twelve pitch classes in a structured sequence.

In other domains, Dodec can appear as an acronym, code name, or brand name, and its meaning must be inferred from the specific context.

Because dodec is a prefix rather than a single entity, clarification is typically required when it appears alone.

Related prefixes include dodeca- and dodec-.