Dyadic describes the interaction between two things, and may refer to:
Dyad (sociology), interaction between a pair of individuals The dyadic variation of democratic peace theory Dyadic counterpoint, the voice-against-voice conception of polyphony People who are not intersex, that is, endosex Dyadic kinship terms, kinship terms that express the relationship between individuals as they relate one to the other
Mathematics Dyadic relation, synonym for binary relation Dyadic function, a function having an arity of two (i.e. having two arguments) Dyadic decomposition, a concept in Littlewood–Paley theory Dyadic distribution, a type of probability distribution Dyadic rational, a rational number whose denominator is a power of 2 Dyadic transformation, an iterated transformation of the unit interval Dyadics, second-order tensors
See also Dyad (disambiguation)