codominantn.adj.

Brit.

/ˌkəʊˈdɒmᵻnənt/, U.S.

/ˌkoʊˈdɑmənənt/

Origin: Formed within English, by derivation. Etymons: co- prefix, dominant adj.

Etymology: < co- prefix + dominant adj.In sense A. 1 after French co-dominante (1847 in this sense in the source translated in quot. 1851).

A. n.

†1. Something of secondary dominance compared to something else; something subordinate but still significant or influential. Cf. subdominant n.² Obsolete. rare.

ΚΠ

1851 J. R. Morell tr. C. Fourier Passions Human Soul II. iv. 299 We shall say that the monogyne Apicius is endowed with the dominant of taste, with the sub-dominant of ambition; that it is to say, that next to gormandism Apicius is principally inclined to ambition, which nevertheless is too weak in his case to be weighed against gormandism, and becomes a co-dominant [Fr. co-dominante].

2. A codominant tree or plant (see sense B. 1).

ΚΠ

1899 V. M. Spalding & B. E. Fernow White Pine (U.S. Dept. Agric.: Forestry Div. Bull. No. 22) 31 Occasionally a codominant becomes dominant, or an oppressed one, by liberation of its oppressors..finds opportunity to push forward and make up for lost time.

1933 Forestry 7 122 These tables show that there is little difference between the various stem-classes—dominants, co-dominants, and sub-dominants—as regards the distribution of form-classes.

1976 Ecology 57 26 Large-diametered loblolly and shortleaf pines constitute the dominant canopy position with both pines and hardwoods, particularly white oak, southern red oak, mockernut hickory, and pignut hickory as codominants.

2004 Canad. Jrnl. Bot. 82 457/1 Our results suggest that asymmetric competition exists between the tallgrass prairie codominants.

B. adj.

a. Forestry. Of a (species of) forest tree: having a crown that reaches but does not extend above the average level of the canopy. Cf. dominant adj. 6.

ΘΚΠ

the world > plants > by growth or development > defined by habit > tree or woody plant > wood or assemblage of trees or shrubs > [adjective] > forming part of main canopy

codominant1882

subdominant1893

1882 Jrnl. U.S. Assoc. Charcoal Iron Workers 3 347 We may group the trees of a forest into two classes: 1. The foregrown, which might be graded again into a. predominant, b. codominant, c. followers, and 2. The overgrown, with grades of d. overwhelmed, e. subdued.

1947 C. F. Burnham et al. White Pine–Hemlock Forests Anthracite Region (U.S. Dept. Agric. Forest Service) 17 In the mature stands the dominant and co-dominant species will produce 3 or more 16-foot logs per tree.

1991 T. T. Kozlowski et al. Physiol. Ecol. Woody Plants ix. 342 A general decline in height growth of dominant and codominant white ash and red oak trees was attributed to increases in several industrial pollutants.

2018 J. F. Franklin et al. Ecol. Forest Managem. iv. 99/1 Ecologically based thinnings almost invariably have more diverse goals than simply stimulating growth of overstory dominant and codominant trees.

b. Ecology. Designating any of two or more species of plant that comprise a relatively high percentage of the vegetation in a plant community.

ΘΚΠ

the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [adjective] > other

bequeathed1619

inheriting1622

propagablea1707

pure-bred1810

prepotent1859

pedigree1861

amphigonous1876

dominant1900

codominant1908

autosomal dominant1922

1908 New Phytologist 7 260 The wood itself contained Quercus pedunculata and Fraxinus excelsior (co-dominant in places and largely self-sown).

1964 V. J. Chapman Coastal Vegetation i. 5 In the case of the General Salt Marsh community,..there are a number of co-dominant species.

2014 S. B. Jeffries & T. R. Wentworth Exploring S. Appalachian Forests 33 The loss of codominant American chestnut to chestnut blight during the early 1900s altered oak forests in fundamental ways.

2. Genetics. Designating heterozygotic alleles at a locus which are each fully expressed in the phenotype; designating a characteristic produced by such an allele, or an organism having such characteristics.

ΚΠ

1905 Bot. Gaz. 39 303 In a case of this kind the red [race of peas] is called ‘dominant’ and rose ‘co-dominant’.

1976 G. H. Pelto & P. J. Pelto Human Adventure v. 93/2 Our familiar blood types A and B are codominant, so that a person who receives the gene for type B blood from his father and the gene for type A blood from his mother will have type AB blood.

2009 J. C. Knight Human Genetic Diversity i. 8/1 The presence of a single copy of an allele with the sickle variant can also be considered co-dominant in terms of susceptibility to sickling at high altitude, or overdominant in terms of conferring the phenotype of resistance to malaria.

3. Having an equal or similar level of dominance or importance.

ΘΚΠ

the mind > attention and judgement > importance > [adjective] > other

of (good) warrantc1330

last1558

overweighted1753

unpostponable1800

sacred1867

mugwump1886

codominant1943

1943 Ess. & Stud. 1942 28 69 If account was taken of a further number of poems in which love, though not the sole or predominant theme, came in as a parallel co-dominant theme, the number was 250—every other poem.

2019 FourFourTwo (Nexis) 23 Mar. A time when red and blue would line the streets of 1980s Merseyside in co-dominant harmony.

4. Designating any of two or more stems of a tree that arise from the same point and are of a similar size and diameter.

ΚΠ

1955 Arid Zone Res. VI: Plant Ecol. (UNESCO) 122/2 The peculiar branching of the ‘Mallee’ form of the Eucalypt, in which a number of co-dominant branches arise from the lignotuber, gives a characteristic physiognomy to the community.

1985 Walnut Council Bull. Summer/Fall 7/1 When possible, cull young trees that have many codominant stems.

2006 Star News (Wilmington, N. Carolina) (Nexis) 12 July 10 a If you want to kill your trees, please obey the following instructions... Leave codominant leaders to encourage ‘V’ growth and splitting during high wind conditions.

This entry has been updated (OED Third Edition, September 2020; most recently modified version published online March 2022).

单词	codominant
释义	codominantn.adj. Brit. /ˌkəʊˈdɒmᵻnənt/, U.S. /ˌkoʊˈdɑmənənt/ Origin: Formed within English, by derivation. Etymons: co- prefix, dominant adj. Etymology: < co- prefix + dominant adj.In sense A. 1 after French co-dominante (1847 in this sense in the source translated in quot. 1851). A. n. †1. Something of secondary dominance compared to something else; something subordinate but still significant or influential. Cf. subdominant n.² Obsolete. rare. ΚΠ 1851 J. R. Morell tr. C. Fourier Passions Human Soul II. iv. 299 We shall say that the monogyne Apicius is endowed with the dominant of taste, with the sub-dominant of ambition; that it is to say, that next to gormandism Apicius is principally inclined to ambition, which nevertheless is too weak in his case to be weighed against gormandism, and becomes a co-dominant [Fr. co-dominante]. 2. A codominant tree or plant (see sense B. 1). ΚΠ 1899 V. M. Spalding & B. E. Fernow White Pine (U.S. Dept. Agric.: Forestry Div. Bull. No. 22) 31 Occasionally a codominant becomes dominant, or an oppressed one, by liberation of its oppressors..finds opportunity to push forward and make up for lost time. 1933 Forestry 7 122 These tables show that there is little difference between the various stem-classes—dominants, co-dominants, and sub-dominants—as regards the distribution of form-classes. 1976 Ecology 57 26 Large-diametered loblolly and shortleaf pines constitute the dominant canopy position with both pines and hardwoods, particularly white oak, southern red oak, mockernut hickory, and pignut hickory as codominants. 2004 Canad. Jrnl. Bot. 82 457/1 Our results suggest that asymmetric competition exists between the tallgrass prairie codominants. B. adj. 1. a. Forestry. Of a (species of) forest tree: having a crown that reaches but does not extend above the average level of the canopy. Cf. dominant adj. 6. ΘΚΠ the world > plants > by growth or development > defined by habit > tree or woody plant > wood or assemblage of trees or shrubs > [adjective] > forming part of main canopy codominant1882 subdominant1893 1882 Jrnl. U.S. Assoc. Charcoal Iron Workers 3 347 We may group the trees of a forest into two classes: 1. The foregrown, which might be graded again into a. predominant, b. codominant, c. followers, and 2. The overgrown, with grades of d. overwhelmed, e. subdued. 1947 C. F. Burnham et al. White Pine–Hemlock Forests Anthracite Region (U.S. Dept. Agric. Forest Service) 17 In the mature stands the dominant and co-dominant species will produce 3 or more 16-foot logs per tree. 1991 T. T. Kozlowski et al. Physiol. Ecol. Woody Plants ix. 342 A general decline in height growth of dominant and codominant white ash and red oak trees was attributed to increases in several industrial pollutants. 2018 J. F. Franklin et al. Ecol. Forest Managem. iv. 99/1 Ecologically based thinnings almost invariably have more diverse goals than simply stimulating growth of overstory dominant and codominant trees. b. Ecology. Designating any of two or more species of plant that comprise a relatively high percentage of the vegetation in a plant community. ΘΚΠ the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [adjective] > other bequeathed1619 inheriting1622 propagablea1707 pure-bred1810 prepotent1859 pedigree1861 amphigonous1876 dominant1900 codominant1908 autosomal dominant1922 1908 New Phytologist 7 260 The wood itself contained Quercus pedunculata and Fraxinus excelsior (co-dominant in places and largely self-sown). 1964 V. J. Chapman Coastal Vegetation i. 5 In the case of the General Salt Marsh community,..there are a number of co-dominant species. 2014 S. B. Jeffries & T. R. Wentworth Exploring S. Appalachian Forests 33 The loss of codominant American chestnut to chestnut blight during the early 1900s altered oak forests in fundamental ways. 2. Genetics. Designating heterozygotic alleles at a locus which are each fully expressed in the phenotype; designating a characteristic produced by such an allele, or an organism having such characteristics. ΚΠ 1905 Bot. Gaz. 39 303 In a case of this kind the red [race of peas] is called ‘dominant’ and rose ‘co-dominant’. 1976 G. H. Pelto & P. J. Pelto Human Adventure v. 93/2 Our familiar blood types A and B are codominant, so that a person who receives the gene for type B blood from his father and the gene for type A blood from his mother will have type AB blood. 2009 J. C. Knight Human Genetic Diversity i. 8/1 The presence of a single copy of an allele with the sickle variant can also be considered co-dominant in terms of susceptibility to sickling at high altitude, or overdominant in terms of conferring the phenotype of resistance to malaria. 3. Having an equal or similar level of dominance or importance. ΘΚΠ the mind > attention and judgement > importance > [adjective] > other of (good) warrantc1330 last1558 overweighted1753 unpostponable1800 sacred1867 mugwump1886 codominant1943 1943 Ess. & Stud. 1942 28 69 If account was taken of a further number of poems in which love, though not the sole or predominant theme, came in as a parallel co-dominant theme, the number was 250—every other poem. 2019 FourFourTwo (Nexis) 23 Mar. A time when red and blue would line the streets of 1980s Merseyside in co-dominant harmony. 4. Designating any of two or more stems of a tree that arise from the same point and are of a similar size and diameter. ΚΠ 1955 Arid Zone Res. VI: Plant Ecol. (UNESCO) 122/2 The peculiar branching of the ‘Mallee’ form of the Eucalypt, in which a number of co-dominant branches arise from the lignotuber, gives a characteristic physiognomy to the community. 1985 Walnut Council Bull. Summer/Fall 7/1 When possible, cull young trees that have many codominant stems. 2006 Star News (Wilmington, N. Carolina) (Nexis) 12 July 10 a If you want to kill your trees, please obey the following instructions... Leave codominant leaders to encourage ‘V’ growth and splitting during high wind conditions. This entry has been updated (OED Third Edition, September 2020; most recently modified version published online March 2022). < n.adj.1851
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