The dyad, a group of two members, is the smallest possible social group: if one person opts out the group ceases to exist. Two people can form an intimacy not found in larger groups, but the dyad also involves other basic elements of social exchange, such as rivalry, reciprocity, and power. See also triad.

Dictionary of sociology. 2013.

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  • 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 …   Wikipedia

  • Dyad — Dy ad, a. (Chem.) Having a valence or combining power of two; capable of being substituted for, combined with, or replaced by, two atoms of hydrogen; as, oxygen and calcium are dyad elements. See {Valence}. [1913 Webster] …   The Collaborative International Dictionary of English

  • Dyad — Dy ad, n. [L. dyas, dyadis, the number two. Gr. ?: cf. F. dyade. See two, and cf. {Duad}.] 1. Two units treated as one; a couple; a pair. [1913 Webster] 2. (Chem.) An element, atom, or radical having a valence or combining power of two. [1913… …   The Collaborative International Dictionary of English

  • dyad — dyad. См. диада. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • dyad — [dī′ad΄] n. [LL dyas (gen. dyadis) < Gr < dyo, TWO] 1. two units regarded as one; pair 2. Biol. a double chromosome resulting from the division of a tetrad in meiosis; half of a tetrad 3. Chem. an atom, element, or radical with a valence of …   English World dictionary

  • Dyad — The word dyad comes from the Greek dyas meaning the number two. In psychology, a dyad refers to a pair of persons in an interactional situation. For example, a patient and therapist, a woman and her husband, a girl and her stepfather, etc. In… …   Medical dictionary

  • dyad — /duy ad/, n. 1. a group of two; couple; pair. 2. Biol. a. a secondary morphological unit, consisting of two monads: a chromosome dyad. b. the double chromosomes resulting from the separation of the four chromatids of a tetrad. 3. Chem. an element …   Universalium

  • dyad — noun Etymology: Late Latin dyad , dyas, from Greek, from dyo Date: 1675 1. pair; specifically two individuals (as husband and wife) maintaining a sociologically significant relationship 2. a meiotic chromosome afte …   New Collegiate Dictionary

  • dyad — [ dʌɪad] noun technical something that consists of two elements or parts. ↘Mathematics an operator which is a combination of two vectors. Derivatives dyadic adjective Origin C17: from late L. dyas, dyad , from Gk duas, from duo two …   English new terms dictionary

  • dyad — dy•ad [[t]ˈdaɪ æd[/t]] n. 1) a group of two; couple; pair 2) biochem. cbl the double chromosomes resulting from the separation of the four chromatids of a tetrad 3) chem. an element, atom, or group having a valence of two 4) math. Math. two… …   From formal English to slang

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