Pertaining or relating to the number two, or to a dyad; consisting of two parts or elements: as, a dyadic metal.
In Gr. pros.:
Comprising two different rhythms or meters: as, a dyadic epiploce.
Consisting of pericopes, or groups of systems each of which contains two unlike systems: as, a dyadic poem.
Also dyad, duadic.
noun.
In mathematics, a sum of dyads.
noun.
The science of reckoning with a system of numerals in which the ratio of values of successive places is two.