tetrad

n. 四元组, 四个一组, 四分染色体 [计] 四位组

发音

CA /ˈtɛtɹæd/
其它
US /ˈtɛtɹæd/
UK /ˈtɛtɹæd/
AU /ˈtetɹæd/
NZ /ˈtetɹɛd/

词形变化

tetrads 复数 tetrads

释义与例句

n.
  1. 1.

    A group of four things.

  2. 2.

    Two pairs of sister chromatids (a dyad pair) aligned in a certain way and often on the equatorial plane during the meiosis process.

    生物
  3. 3.

    A group of four haploid and immature pollen grains in tetrahedral fashion produced by meiotic microsporogenesis.

    生物
  4. 4.

    A unit of land area of two by two (that is, four) square kilometres.

  5. 5.

    A tetravalent atom or radical.

    化学
  6. 6.

    A group of four basis vectors for a four-dimensional manifold in differential geometry.

    数学
  7. 7.

    A chord comprised of four notes; a tetrachord.

    音乐

词汇关系

名词

同义词 8

four quartet foursome IV quadruplet quaternary quaternion quaternity

上位词 2

figure digit

相关短语

tetrad of Fallot

词源

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

来源：wiktionary