I. adjective
also di·ad·ic (ˈ)dī|adik
Etymology: dyad, diad + -ic
: of, having reference to, or concerning a dyad : being of two parts or elements : involving two in its formation
a dyadic relation between the spectator and the experience — Daniel Bell
dyadic arithmetic
cultural importance, intimate nature, and dyadic character of the family — J.G.March
a dyadic relation between a sign and an object — R.S.Wells
II. noun
( -s )
: a sum of mathematical dyads