pleomorphismn.

Brit.

/ˌpliːə(ʊ)ˈmɔːfɪz(ə)m/, U.S.

/ˌpliəˈmɔrˌfɪz(ə)m/

Forms: 1800s– pleomorphism, 1900s– pleiomorphism.

Origin: Formed within English, by compounding. Etymons: pleo- comb. form, -morphism comb. form.

Etymology: < pleo- comb. form + -morphism comb. form. Compare French pléomorphisme (dated 1903 in Robert Dict. alphabétique et analogique (1986), in sense (b); 1933 or earlier in sense (c)), German Pleomorphismus (1874 or earlier in sense (b), in the passage translated in quot. 1882 at pleomorphy n. 2). Compare pleomorphous adj., and also earlier polymorphism n.

The fact or condition of exhibiting more than one form; variability of form; spec. †(a) Chemistry and Mineralogy = polymorphism n. 3 (rare); (b) Biology the occurrence of different morphological forms at different stages of the life cycle or in different conditions (cf. polymorphism n. 2); (c) Pathology atypical variability of size and shape, esp. of cells or their nuclei; the presence of such cells, as in a neoplasm.

ΘΚΠ

the world > life > biology > biological processes > development, growth, or degeneration > [noun] > life cycle > metamorphosis

metamorphosis1665

pleomorphism1854

allomorphosis1860

polyeidism1866

metamorphose1870

morphosis1882

pleomorphy1882

metaboly1890

cyclomorphosis1926

the world > matter > chemistry > crystallography (general) > crystal (general) > structures and forms > [noun] > polymorph > polymorphism

polymorphism1848

pleomorphism1854

1854 J. D. Dana Syst. Mineral. (ed. 4) 209 The parallel groups in the same division, which are analogous in composition, are examples of..pleomorphism.

1872 Amer. Naturalist 6 423 The recently recognized species are often varieties of well known individuals... This tendency to variation has been termed pleomorphism.

1876 J. Van Duyn & E. C. Seguin tr. E. L. Wagner Man. Gen. Pathol. 86 Upon this depends the so-called pleomorphism (Tulasne); i.e. the same plants can occur under two or more forms.

1884 Nature 4 Sept. 433/2 The then recent discoveries of Pleomorphism and the reproductive organs..were leading mycologists to suspect that a reproductive process exists in the case of all the higher Fungi.

1925 C. H. Browning Bacteriol. iv. 89 There are some who consider such variability in form or ‘pleomorphism’ as evidence of a life cycle.

1953 R. W. Fairbrother Text-bk. Bacteriol. (ed. 7) xix. 257 They may exhibit pleomorphism and occur as clubs, filaments or long rods.

1959 C. T. Ingold in W. B. Turrill Vistas in Bot. 350 The brothers especially stressed pleomorphism in fungi, that is the existence of more than one spore-type in the life-cycle.

1989 Jrnl. Neurooncol. 7 299 Several characteristic features of spontaneous glioblastomas, such as neovasculature, parenchymal invasion, nuclear pleiomorphism, and presence of hemorrhagic and necrotic areas.

2005 Jrnl. Cutaneous Pathol. 32 314 The differential diagnosis of granular cells in neoplasms containing cytological pleomorphism is challenging.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	pleomorphism
释义	pleomorphismn. Brit. /ˌpliːə(ʊ)ˈmɔːfɪz(ə)m/, U.S. /ˌpliəˈmɔrˌfɪz(ə)m/ Forms: 1800s– pleomorphism, 1900s– pleiomorphism. Origin: Formed within English, by compounding. Etymons: pleo- comb. form, -morphism comb. form. Etymology: < pleo- comb. form + -morphism comb. form. Compare French pléomorphisme (dated 1903 in Robert Dict. alphabétique et analogique (1986), in sense (b); 1933 or earlier in sense (c)), German Pleomorphismus (1874 or earlier in sense (b), in the passage translated in quot. 1882 at pleomorphy n. 2). Compare pleomorphous adj., and also earlier polymorphism n. The fact or condition of exhibiting more than one form; variability of form; spec. †(a) Chemistry and Mineralogy = polymorphism n. 3 (rare); (b) Biology the occurrence of different morphological forms at different stages of the life cycle or in different conditions (cf. polymorphism n. 2); (c) Pathology atypical variability of size and shape, esp. of cells or their nuclei; the presence of such cells, as in a neoplasm. ΘΚΠ the world > life > biology > biological processes > development, growth, or degeneration > [noun] > life cycle > metamorphosis metamorphosis1665 pleomorphism1854 allomorphosis1860 polyeidism1866 metamorphose1870 morphosis1882 pleomorphy1882 metaboly1890 cyclomorphosis1926 the world > matter > chemistry > crystallography (general) > crystal (general) > structures and forms > [noun] > polymorph > polymorphism polymorphism1848 pleomorphism1854 1854 J. D. Dana Syst. Mineral. (ed. 4) 209 The parallel groups in the same division, which are analogous in composition, are examples of..pleomorphism. 1872 Amer. Naturalist 6 423 The recently recognized species are often varieties of well known individuals... This tendency to variation has been termed pleomorphism. 1876 J. Van Duyn & E. C. Seguin tr. E. L. Wagner Man. Gen. Pathol. 86 Upon this depends the so-called pleomorphism (Tulasne); i.e. the same plants can occur under two or more forms. 1884 Nature 4 Sept. 433/2 The then recent discoveries of Pleomorphism and the reproductive organs..were leading mycologists to suspect that a reproductive process exists in the case of all the higher Fungi. 1925 C. H. Browning Bacteriol. iv. 89 There are some who consider such variability in form or ‘pleomorphism’ as evidence of a life cycle. 1953 R. W. Fairbrother Text-bk. Bacteriol. (ed. 7) xix. 257 They may exhibit pleomorphism and occur as clubs, filaments or long rods. 1959 C. T. Ingold in W. B. Turrill Vistas in Bot. 350 The brothers especially stressed pleomorphism in fungi, that is the existence of more than one spore-type in the life-cycle. 1989 Jrnl. Neurooncol. 7 299 Several characteristic features of spontaneous glioblastomas, such as neovasculature, parenchymal invasion, nuclear pleiomorphism, and presence of hemorrhagic and necrotic areas. 2005 Jrnl. Cutaneous Pathol. 32 314 The differential diagnosis of granular cells in neoplasms containing cytological pleomorphism is challenging. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1854
随便看	citole citoler citoles citoling citoyen citoyenne citra citra- citracaucasian citraconate citraconic citraconic acid citraconic anhydride citraconic ether citradiametral citral citral a citral b citrals citramalate citramalic citramalic acid citramide citramontane citrange