| 释义 |
tet·rad AHD[tĕtʹrăd'] D.J.[ˈtetˌræd]K.K.[ˈtɛtˌræd]n.（名词）- A group or set of four.四个一组
- A tetravalent atom, radical, or element.四价原子，基团或元素
- Biology 【生物学】
- A group of four chromatids formed from each of a pair of homologous chromosomes that split longitudinally during the prophase of meiosis.四分体：一组来自减数分裂中相互垂直分裂的一对同源染色体的四个染色单体
- Botany A group of four cells, as of spores or pollen grains formed by division of one mother cell.【植物学】 四分体：四个一组的来自母细胞分裂的细胞，如孢子或花粉粒
- Greek tetras tetrad- * see k wetwer- 希腊语 tetras tetrad- * 参见 k wetwer-
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