subgroup

n. 小群, 隶属的小组织, 子群 [化] 族; 族周期表; 副族(指周期表中B族); 子群; 亚群(生物分类); 族(数)

发音

US /ˈsʌbˌɡɹuːp/

词形变化

subgroups 复数 subgroups subgrouped subgrouping subgroups 三单 subgrouping 现在分词 subgrouped 过去式 subgrouped 过去分词

别名

sub-group

释义与例句

n.
  1. 1.

    A group within a larger group; a group whose members are some, but not all, of the members of a larger group.

    子群

    亚群

    1998, Robert A. Johnson, Prevalence of Substance Use Among Racial and Ethnic Subgroups in the United States, 1991-1993, Department of Health and Human Services, page B-11, Based on U.S. Bureau of the Census (1992c), other metropolitan areas that might be suitable for oversampling specific racial/ethnic subgroups include Miami (18% Cuban), New York City (7% Puerto Rican), Los Angeles (26% Mexican), and Honolulu (23% Japanese). Three techniques might be used to increase the yield of rare subgroup members within metropolitan areas where they are concentrated: 1) oversampling of areal segments containing high percentages of the subgroup, […] .

  2. 2.

    A subset H of a group G that is itself a group and has the same binary operation as G.

    子群

    数学
v.
  1. 1.

    To divide or classify into subgroups

词汇关系

名词

上位词 2

group grouping

下位词 1

bench

相关短语

normal subgroup derived subgroup commutator subgroup Fitting subgroup stabilizer subgroup torsion subgroup

词源

From sub- + group.

来源：wiktionary