Medical term:
dyad
dy·ad
(dī'ad),1. A pair. Synonym(s): diad (2)
2. In chemistry, a bivalent element, molecule, or ion.
3. Two people in an interactional situation, for example, patient and therapist, husband and wife.
4. The double chromosome resulting from division in meiosis.
5. Two units treated as one.
6. A pair of cells resulting from the first meitotic division.
7. The transverse tubule and a terminal cisterna in cardiac muscle cells.
[G. dyas, the number two, duality]
Farlex Partner Medical Dictionary © Farlex 2012
dyad
(dī′ăd′, -əd)n.
1. Two individuals or units regarded as a pair: the mother-daughter dyad.
2. Biology One pair of homologous chromosomes resulting from the division of a tetrad during meiosis.
3. Mathematics
a. A function that draws a correspondence from any vector u to the vector (v·u)w and is denoted vw, where v and w are a fixed pair of vectors and v·u is the scalar product of v and u. For example, if v = (2,3,1), w = (0,-1,4), and u = (a,b,c), then the dyad vw draws a correspondence from u to (2a + 3b + c)w.
b. A tensor formed from a vector in a vector space and a linear functional on that vector space.
adj.
Made up of two units.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
dyad
Psychiatry A 2-person relationship–eg, a therapeutic relationship between doctor and Pt in psychotherapy. See Folie á dieux. Cf Shared delusion.McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
dy·ad
(dī'ad)1. A pair.
Synonym(s): diad (2) .
Synonym(s): diad (2) .
2. chemistry A bivalent element.
3. Two people in an interactional situation, e.g., patient and therapist, husband and wife.
4. The double chromosome resulting from the splitting of a tetrad during meiosis.
[G. dyas, the number two, duality]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
dyad
a chromosome consisting of two sister CHROMATIDS joined at their centromere which is produced after DISJUNCTION.Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
dyadic
(dī-ăd′ĭk)adj.
1. Twofold.
2. Of or relating to a dyad.
n. Mathematics
The sum of a finite number of dyads.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
dyadic
(dī-ăd′ĭk)Pert. to the social interaction between two people.
Medical Dictionary, © 2009 Farlex and Partners
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