Dyad

dyad may refer to:

• dyad (symbol), according to the Pythagoreans, is the principle of "twoness" or "otherness"
• dyad (biology), a pair of sister chromatids occurring in prophase I of meiosis
• dyad (General), consisting of two parts
• dyad (Greek philosophy), Greek philosopher's principle of "twoness" or "otherness"
• dyad (music), a set of two notes or pitches
• dyad (sociology), mostly refers to parents and friends, occasionally to twins
• dyad, in engineering kinematics, a linkage in a planar mechanism that has two possible assembly modes
• dyad, in Obstetrics refers to the pregnant mother and fetus
• dyad (spiritual workshops), is a partner-assisted meditation with rules to prevent trip-laying and abuse
• dyadic tensor, in mathematics
• Dyad, a Canadian band playing traditional American Old Time music

See also

• Dyadic, disambiguation page
• Diad
• Dryad