tetrad

English dictionary entry

Meanings

noun

A group of four things.
Two pairs of sister chromatids (a dyad pair) aligned in a certain way and often on the equatorial plane during the meiosis process.
A group of four haploid and immature pollen grains in tetrahedral fashion produced by meiotic microsporogenesis.
A unit of land area of two by two (that is, four) square kilometres.
A tetravalent atom or radical.
A group of four basis vectors for a four-dimensional manifold in differential geometry.
A chord comprised of four notes; a tetrachord.

/ˈtɛtɹæd/ LL-Q1860 (eng)-Vealhurl-tetrad.wav /ˈtetɹæd/ /ˈtetɹɛd/

tetrad tetrads

From Ancient Greek τετράς (tetrás), analysable as tetra- + -ad.

foursome quartet quadruplet quadruplicity quadrad quaternion quaternity tetrad tetraplet

tetrad of Fallot tetradic

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