heteromorphicadj.

/hɛtərəʊˈmɔːfɪk/

Etymology: < Greek ἑτερο- hetero- comb. form + -morphic comb. form.

1. Of different or dissimilar forms. spec.:

a. Entomology. Existing in different forms at different stages of life: said of insects which undergo complete metamorphosis (Heteromorpha). Hence in wider use in Biology.

ΘΚΠ

the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [adjective] > occurrence of variant forms

polymorphous1773

polytypic1858

polymorphic1859

heteromorphic1864

polytypical1890

polymorphistic1897

morphic1955

1864 in Webster's Amer. Dict. Eng. Lang.

1874 J. Lubbock Orig. & Metamorphoses Insects i. 6 The Homomorphic insects do not pass through such striking changes of form as the Heteromorphic.

1935 F. E. Fritsch Struct. & Reprod. Algae I. 52 The last type of life-cycle..exhibits an alternation of a large sporophyte and a generally small gametophyte. This heteromorphic (antithetic) alternation is encountered solely among Phaeophyceae.

1967 C. J. Alexopoulos & H. C. Bold Algae & Fungi iv. 23 In heteromorphic alternation, the two sequential organisms differ morphologically.

b. Botany. Applied to flowers or plants which occur in forms differing in the relative length of the stamens and pistils (including dimorphic and trimorphic).

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [adjective] > having or relating to parts > of or having stamens or pistils > characterized by relative length

homomorphous1854

thrum-eyed1861

trimorphic1866

dimorphic1870

homomorphic1873

heteromorphic1874

heterostyled1876

heterogone1877

heterogonous1877

homogone1877

homogonous1877

homostyled1877

homostylic1883

homostylous1886

heterostylous1887

1874 in R. Brown Man. Bot. Gloss.

1877 C. Darwin Different Forms Flowers i. 24 I formerly applied the term ‘heteromorphic’ to the legitimate unions; and ‘homomorphic’ to the illegitimate unions; but after discovering the existence of trimorphic plants..these two terms ceased to be applicable.

c. Cytology. Applied to homologous chromosomes that differ in size or form.

ΘΚΠ

the world > life > biology > biological processes > genetic activity > genetic components > [adjective] > chromosome > chromosomes in respect of meiosis

non-homologous1883

quadrivalent1898

univalent1898

bivalent1899

plurivalent1901

homologous1903

heterotropic1905

monovalent1906

heteromorphic1917

homomorphic1917

trivalent1921

multivalent1929

sexivalent1931

nullisomic1932

quinquevalent1935

1917 E. E. Carothers in Jrnl. Morphol. 28 449 The unusual conditions of the chromosomes in this group have made advisable the introduction of four new terms... Heteromorphic—used to designate those tetrads made up of morphologically different homologues.

1925 E. B. Wilson Cell (ed. 3) vi. 571 The so-called heteromorphic chromosome-pairs in which the synaptic mates are visibly distinguishable by the eye by differences of size, form, mode of spindle-attachment or structure.

1955 Jrnl. Genetics 53 593 Symmetrical separation of the pair of heteromorphic X- and Y-chromosomes in the first anaphase of meiosis.

d. Mineralogy. [translating French hétéromorphe (A. Lacroix 1917, in Compt. Rend. CLXV. 486).] (See quot. 1920.)

ΘΚΠ

the world > the earth > minerals > [adjective] > mineral composition

normative1902

heteromorphic1920

the world > the earth > structure of the earth > constituent materials > rock > mineral or chemical composition > [adjective]

modal1902

heteromorphic1920

1920 A. Holmes Nomencl. Petrol. 117 Heteromorphic, a term applied to rocks of similar chemical composition, but of different mineral composition.

1921 A. Holmes Petrogr. Methods x. 410 Each of these rocks is a heteromorphic type of theralite.

e. Zoology. (See quots.)

ΚΠ

1931 W. C. Allee Animal Aggregations ii. 16 Heteromorphic colonies are formed when the divisions are unequal, as is the case with the strobila of the Scyphozoa, or during the processes of asexual reproduction of certain worms, such as Autolytus.

1931 W. C. Allee Animal Aggregations ii. 23 Heteromorphic and polymorphic colonies are formed when there is a differentiation between the different members of the colony, as occurs in the hybrid Hydractinia, in which feeding, reproductive, and protective zoöids may be recognized.

Thesaurus »

2. Deviating in form from the standard or type; of abnormal form: = heteromorphous adj. 1 (In modern dictionaries.)

3. Biology. Resulting from heteromorphosis.

ΘΚΠ

the world > life > biology > biological processes > development, growth, or degeneration > [adjective] > growth > development or regeneration of parts

regenerative1767

organogenic1852

organogenetic1854

hysterogenetic1884

hysterogenic1885

heteromorphic1898

mesogenous1965

1898 Arch. f. Entwickelungsmech. d. Organismen VII. 481 Neither the present nor other experiments indicate, that the influence of the organism as a whole upon the regenerating part is able to bring forth a heteromorphic sructure..out of material which would normally produce something else.

1932 J. S. Huxley Probl. Relative Growth vi. iii. 175 The regenerated heteromorphic appendage almost invariably is of a type which normally belongs to a more posterior segment—e.g. antenna regenerated instead of eye-stalk (Palaemon).

1966 E. D. Hay Regeneration ii. 75 The heteromorphic growths..may result because an insufficient mass of cells is present for correct differentiation of the skeletal pattern.

Derivatives

ˌheteroˈmorphically adv. by means of heteromorphosis.

ΚΠ

1959 Jrnl. Biophysical & Biochem. Cytol. 5 25 Cultures of subcutaneous areolar fibroblasts..are changed heteromorphically so as to resemble cultures of nervous tissue.

This entry has not yet been fully updated (first published 1898; most recently modified version published online June 2019).

单词	heteromorphic
释义	heteromorphicadj. /hɛtərəʊˈmɔːfɪk/ Etymology: < Greek ἑτερο- hetero- comb. form + -morphic comb. form. 1. Of different or dissimilar forms. spec.: a. Entomology. Existing in different forms at different stages of life: said of insects which undergo complete metamorphosis (Heteromorpha). Hence in wider use in Biology. ΘΚΠ the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [adjective] > occurrence of variant forms polymorphous1773 polytypic1858 polymorphic1859 heteromorphic1864 polytypical1890 polymorphistic1897 morphic1955 1864 in Webster's Amer. Dict. Eng. Lang. 1874 J. Lubbock Orig. & Metamorphoses Insects i. 6 The Homomorphic insects do not pass through such striking changes of form as the Heteromorphic. 1935 F. E. Fritsch Struct. & Reprod. Algae I. 52 The last type of life-cycle..exhibits an alternation of a large sporophyte and a generally small gametophyte. This heteromorphic (antithetic) alternation is encountered solely among Phaeophyceae. 1967 C. J. Alexopoulos & H. C. Bold Algae & Fungi iv. 23 In heteromorphic alternation, the two sequential organisms differ morphologically. b. Botany. Applied to flowers or plants which occur in forms differing in the relative length of the stamens and pistils (including dimorphic and trimorphic). ΘΚΠ the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [adjective] > having or relating to parts > of or having stamens or pistils > characterized by relative length homomorphous1854 thrum-eyed1861 trimorphic1866 dimorphic1870 homomorphic1873 heteromorphic1874 heterostyled1876 heterogone1877 heterogonous1877 homogone1877 homogonous1877 homostyled1877 homostylic1883 homostylous1886 heterostylous1887 1874 in R. Brown Man. Bot. Gloss. 1877 C. Darwin Different Forms Flowers i. 24 I formerly applied the term ‘heteromorphic’ to the legitimate unions; and ‘homomorphic’ to the illegitimate unions; but after discovering the existence of trimorphic plants..these two terms ceased to be applicable. c. Cytology. Applied to homologous chromosomes that differ in size or form. ΘΚΠ the world > life > biology > biological processes > genetic activity > genetic components > [adjective] > chromosome > chromosomes in respect of meiosis non-homologous1883 quadrivalent1898 univalent1898 bivalent1899 plurivalent1901 homologous1903 heterotropic1905 monovalent1906 heteromorphic1917 homomorphic1917 trivalent1921 multivalent1929 sexivalent1931 nullisomic1932 quinquevalent1935 1917 E. E. Carothers in Jrnl. Morphol. 28 449 The unusual conditions of the chromosomes in this group have made advisable the introduction of four new terms... Heteromorphic—used to designate those tetrads made up of morphologically different homologues. 1925 E. B. Wilson Cell (ed. 3) vi. 571 The so-called heteromorphic chromosome-pairs in which the synaptic mates are visibly distinguishable by the eye by differences of size, form, mode of spindle-attachment or structure. 1955 Jrnl. Genetics 53 593 Symmetrical separation of the pair of heteromorphic X- and Y-chromosomes in the first anaphase of meiosis. d. Mineralogy. [translating French hétéromorphe (A. Lacroix 1917, in Compt. Rend. CLXV. 486).] (See quot. 1920.) ΘΚΠ the world > the earth > minerals > [adjective] > mineral composition normative1902 heteromorphic1920 the world > the earth > structure of the earth > constituent materials > rock > mineral or chemical composition > [adjective] modal1902 heteromorphic1920 1920 A. Holmes Nomencl. Petrol. 117 Heteromorphic, a term applied to rocks of similar chemical composition, but of different mineral composition. 1921 A. Holmes Petrogr. Methods x. 410 Each of these rocks is a heteromorphic type of theralite. e. Zoology. (See quots.) ΚΠ 1931 W. C. Allee Animal Aggregations ii. 16 Heteromorphic colonies are formed when the divisions are unequal, as is the case with the strobila of the Scyphozoa, or during the processes of asexual reproduction of certain worms, such as Autolytus. 1931 W. C. Allee Animal Aggregations ii. 23 Heteromorphic and polymorphic colonies are formed when there is a differentiation between the different members of the colony, as occurs in the hybrid Hydractinia, in which feeding, reproductive, and protective zoöids may be recognized. Thesaurus » 2. Deviating in form from the standard or type; of abnormal form: = heteromorphous adj. 1 (In modern dictionaries.) 3. Biology. Resulting from heteromorphosis. ΘΚΠ the world > life > biology > biological processes > development, growth, or degeneration > [adjective] > growth > development or regeneration of parts regenerative1767 organogenic1852 organogenetic1854 hysterogenetic1884 hysterogenic1885 heteromorphic1898 mesogenous1965 1898 Arch. f. Entwickelungsmech. d. Organismen VII. 481 Neither the present nor other experiments indicate, that the influence of the organism as a whole upon the regenerating part is able to bring forth a heteromorphic sructure..out of material which would normally produce something else. 1932 J. S. Huxley Probl. Relative Growth vi. iii. 175 The regenerated heteromorphic appendage almost invariably is of a type which normally belongs to a more posterior segment—e.g. antenna regenerated instead of eye-stalk (Palaemon). 1966 E. D. Hay Regeneration ii. 75 The heteromorphic growths..may result because an insufficient mass of cells is present for correct differentiation of the skeletal pattern. Derivatives ˌheteroˈmorphically adv. by means of heteromorphosis. ΚΠ 1959 Jrnl. Biophysical & Biochem. Cytol. 5 25 Cultures of subcutaneous areolar fibroblasts..are changed heteromorphically so as to resemble cultures of nervous tissue. This entry has not yet been fully updated (first published 1898; most recently modified version published online June 2019). < adj.1864
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