dyad (plural dyads)
- A set of two elements treated as one; a pair.
- 1908, W. D. Ross, Metaphysics, translation of original by Aristotle:
- ... positing a dyad and constructing the infinite out of great and small, instead of treating the infinite as one, is peculiar to him; ...
- 2019 January 29, Tom Bissell, “An Anti-Facebook Manifesto”, in New York Times:
- McNamee describes their grip on the company as “the most centralized decision-making structure I have ever encountered in a large company.” Their power dyad is possible only because Facebook’s “core platform,” as McNamee puts it, is relatively simple: It “consists of a product and a monetization scheme.”
- (music) Any set of two different pitch classes.
- A pair of things standing in particular relation; dyadic relation.
- "For each individual in a specific dyad (i.e., mother-offspring, offspring-father, sibling-sibling),..." Debra Lieberman, John Tooby, and Leda Cosmides - The evolution of human incest avoidance mechanisms: an evolutionary psychological approach, p. 20
- (chemistry) An element, atom, or radical having a valence or combining power of two.
- (biology) A secondary unit of organisation consisting of an aggregate of monads.
- monad · duad, dyad · triad · tetrad · pentad · hexad · heptad · octad · ennead, nonad · decad, decade · hendecad · dodecad, duodecade
set of two different elements
(music) any set of two different pitch classes
(chemistry) element, atom, etc., having a valence of two
- ^ “dyad” in The American Heritage Dictionary of the English Language, 4th edition, Boston, Mass.: Houghton Mifflin, 2000, →ISBN.