Dyadic

A dyadic is a math function that needs two things in order to give something out.  Addition and multiplication are dyadic.  Powers are also dyadic.  There are many more functions that are dyadic.

Dyadic may specifically refer to:

Dyad
Dyadic communication
Dyadic counterpoint, the voice-against-voice conception of polyphony
Dyadic fraction
Dyadic product
Dyadic rational (also known as Dyadic solenoid)
Dyadic Relation (usually known as a Binary relation)
Dyadic tensor
Dyadic transformation