æd noun
1.
a group of two; couple; pair.
2.
Biology.
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.
4.
Mathematics. two vectors with no symbol connecting them, usually considered as an operator.
5.
Sociology.
a.
two persons involved in an ongoing relationship or interaction.
b.
the relationship or interaction itself.
adjective
6.
of two parts; dyadic.
00:10
Dyad
is always a great word to know.
So is catalyst. Does it mean:
| a substance that causes a chemical reaction without itself being affected |
| a colorless, flammable gas, C4H10, a saturated aliphatic existing in two isometric forms: used chiefly in the manufacture of rubber and as fuel |
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source
|
Link To dyad
Collins
World English Dictionary
dyad (ˈdaɪæd) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n | |
| 1. | maths an operator that is the unspecified product of two vectors. It can operate on a vector to produce either a scalar or vector product |
| 2. | an atom or group that has a valency of two |
| 3. | a group of two; couple |
| [C17: from Late Latin dyas, from Greek duas two, a pair] | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary
dyad dy·ad (dī'ād', -əd)
n.
Two individuals or units regarded as a pair, such as a mother and a daughter.
A divalent atom or radical.
One pair of homologous chromosomes resulting from the division of a tetrad during meiosis.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Example sentences
Make the case that a never-ceasing dyad of enmity helps no one.
For promotion and tenure, mentoring is essential, but the dyad need not always be a senior scholar tutoring a junior one.
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