Dyad

Dyad may refer to:

Dyad (biology), a pair of sister chromatids occurring in prophase I of meiosis; may also be used to describe protein morphology
Dyad (Greek philosophy), Greek philosophers' principle of "twoness" or "otherness"
Dyad (music), a set of two notes or pitches
Dyad (sociology), mostly refers to pairs of individuals such as couples, co-authors, twins, partners in crime, etc.
Dyad pedagogy, in education
Dyad, in engineering kinematics, a linkage in a planar mechanism that has two possible assembly modes
Dyad, in obstetrics, the pregnant mother and fetus
Dyadic tensor, in mathematics

See also