subgroupn.

Brit.

/ˈsʌbɡruːp/, U.S.

/ˈsəbˌɡrup/

Origin: Formed within English, by derivation. Etymons: sub- prefix, group n.

Etymology: < sub- prefix + group n. Compare French sous-groupe (1819 or earlier).

1. A subordinate group; a subdivision of a group.

ΘΚΠ

the world > relative properties > kind or sort > [noun] > a kind, sort, or class > a subordinate class or group

subdivisiona1450

under-kind1571

membera1631

subdenomination1630

subdistinction1665

subkind1820

subgroup1826

subform1844

subclass1852

subset1881

subworld1887

subgenre1903

the world > life > biology > taxonomy > taxon > [noun] > section or sub-section

section1720

subsection1813

subgroup1826

subdivision2000

1826 Edinb. Jrnl. Sci. 4 166 This sub-group of the Compositæ appears to be rather more numerous in Europe than in Asia.

1839 London & Edinb. Philos. Mag. & Jrnl. Sci. 14 341 Each of these groups [of resins] is divisible into many subgroups, in each of which y is represented by a different number.

1859 C. Darwin Origin of Species iv. 126 Small and broken groups and sub-groups will finally tend to disappear.

1935 Planning 2 xli. 6 Utility Services..has been working in three or four sub-groups, one of which dealing with transport has produced the survey.

1977 Ann. Internal Med. 86 662/2 The concept of ‘splitting’ diseases into subgroups often results in artificial categories that do not hold up as larger patient populations are evaluated.

2002 N.Y. Times Mag. 13 Feb. 30/2 Manufacturers cannot keep pace with the evolving lifestyles of..different groups and subgroups.

2. Mathematics. A group all of whose elements are elements of some group G and subject to the same operations as G.

ΘΚΠ

the world > relative properties > number > mathematical number or quantity > numerical arrangement > [noun] > set > in abstract algebra > groups

syntheme1844

group1854

substitution group1861

quaternion group1881

subgroup1881

Abelian group1892

permutation group1893

quotient group1893

factor group1895

order1897

symmetric group1897

point group1903

Sylow subgroup1905

module1927

Lie group1939

symmetry group1956

Weyl group1961

stabilizer1965

1881 Amer. Jrnl. Math. 4 355 The groups Q₈ and Q₂₄ are contained in Q₄₈, and Q₈ in Q₂₄, as permutable sub-groups.

1937 R. D. Carmichael Introd. Theory Groups of Finite Order i. 28 A subgroup of G which is not identical with G is called a proper subgroup of G.

1972 Proc. Amer. Math. Soc. 34 341 Let U, V be normally embedded permutable subgroups of G.

2007 I. Stewart Why Beauty is Truth xiii. 240 The separate symmetry groups SO(3), SO(2), and O(1) might with luck be subgroups of K(9).

This entry has been updated (OED Third Edition, June 2012; most recently modified version published online June 2022).

subgroupv.

Brit.

/ˈsʌbɡruːp/, U.S.

/ˈsəbˌɡrup/

Origin: Formed within English, by conversion. Etymon: subgroup n.

Etymology: < subgroup n. Compare subgrouping n.

transitive. To divide or classify into subgroups.

ΚΠ

1854 T. S. Lambert Human Anat., Physiol. & Hygiene iii. i. ii. i. 303 How might the nerves be sub-grouped?

1922 E. Wallace Flying Fifty-five xi. 67 They also were grouped and sub-grouped and indexed.

1977 Lancet 1 Jan. 9/1 The i.q. data from this study have been subgrouped according to whether the immersion accident occurred in the hot or the cold months of the year.

1996 Handbk. N. Amer. Indians XVII. 322 Chiwere, consisting of the very similar Otoe, Missouri, and Iowa, is sometimes subgrouped with Winnebago.

This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).

单词	subgroup
释义	subgroupn. Brit. /ˈsʌbɡruːp/, U.S. /ˈsəbˌɡrup/ Origin: Formed within English, by derivation. Etymons: sub- prefix, group n. Etymology: < sub- prefix + group n. Compare French sous-groupe (1819 or earlier). 1. A subordinate group; a subdivision of a group. ΘΚΠ the world > relative properties > kind or sort > [noun] > a kind, sort, or class > a subordinate class or group subdivisiona1450 under-kind1571 membera1631 subdenomination1630 subdistinction1665 subkind1820 subgroup1826 subform1844 subclass1852 subset1881 subworld1887 subgenre1903 the world > life > biology > taxonomy > taxon > [noun] > section or sub-section section1720 subsection1813 subgroup1826 subdivision2000 1826 Edinb. Jrnl. Sci. 4 166 This sub-group of the Compositæ appears to be rather more numerous in Europe than in Asia. 1839 London & Edinb. Philos. Mag. & Jrnl. Sci. 14 341 Each of these groups [of resins] is divisible into many subgroups, in each of which y is represented by a different number. 1859 C. Darwin Origin of Species iv. 126 Small and broken groups and sub-groups will finally tend to disappear. 1935 Planning 2 xli. 6 Utility Services..has been working in three or four sub-groups, one of which dealing with transport has produced the survey. 1977 Ann. Internal Med. 86 662/2 The concept of ‘splitting’ diseases into subgroups often results in artificial categories that do not hold up as larger patient populations are evaluated. 2002 N.Y. Times Mag. 13 Feb. 30/2 Manufacturers cannot keep pace with the evolving lifestyles of..different groups and subgroups. 2. Mathematics. A group all of whose elements are elements of some group G and subject to the same operations as G. ΘΚΠ the world > relative properties > number > mathematical number or quantity > numerical arrangement > [noun] > set > in abstract algebra > groups syntheme1844 group1854 substitution group1861 quaternion group1881 subgroup1881 Abelian group1892 permutation group1893 quotient group1893 factor group1895 order1897 symmetric group1897 point group1903 Sylow subgroup1905 module1927 Lie group1939 symmetry group1956 Weyl group1961 stabilizer1965 1881 Amer. Jrnl. Math. 4 355 The groups Q₈ and Q₂₄ are contained in Q₄₈, and Q₈ in Q₂₄, as permutable sub-groups. 1937 R. D. Carmichael Introd. Theory Groups of Finite Order i. 28 A subgroup of G which is not identical with G is called a proper subgroup of G. 1972 Proc. Amer. Math. Soc. 34 341 Let U, V be normally embedded permutable subgroups of G. 2007 I. Stewart Why Beauty is Truth xiii. 240 The separate symmetry groups SO(3), SO(2), and O(1) might with luck be subgroups of K(9). This entry has been updated (OED Third Edition, June 2012; most recently modified version published online June 2022). subgroupv. Brit. /ˈsʌbɡruːp/, U.S. /ˈsəbˌɡrup/ Origin: Formed within English, by conversion. Etymon: subgroup n. Etymology: < subgroup n. Compare subgrouping n. transitive. To divide or classify into subgroups. ΚΠ 1854 T. S. Lambert Human Anat., Physiol. & Hygiene iii. i. ii. i. 303 How might the nerves be sub-grouped? 1922 E. Wallace Flying Fifty-five xi. 67 They also were grouped and sub-grouped and indexed. 1977 Lancet 1 Jan. 9/1 The i.q. data from this study have been subgrouped according to whether the immersion accident occurred in the hot or the cold months of the year. 1996 Handbk. N. Amer. Indians XVII. 322 Chiwere, consisting of the very similar Otoe, Missouri, and Iowa, is sometimes subgrouped with Winnebago. This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022). < n.1826v.1854
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