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单词 polytypic
释义

polytypicadj.

Brit. /ˌpɒlɪˈtɪpɪk/, U.S. /ˌpɑliˈtɪpɪk/
Origin: A borrowing from French, combined with an English element. Etymons: French polytype , -ic suffix.
Etymology: < French polytype encompassing many species (1842; < poly- poly- comb. form + type type n.) + -ic suffix. Compare monotypic adj.
1.
a. Taxonomy. Of a taxon: including several taxa of the next lower rank.
ΘΚΠ
the world > relative properties > relationship > variety > [adjective]
sunderlyeOE
manifoldeOE
selcoutha1000
felefoldc1000
mislichOE
alkinOE
manykinOE
fele-kync1175
serekina1300
sundera1325
sundrya1325
serea1340
divers1340
varyingc1340
variantc1380
muchfoldc1384
serelepesa1400
serelepya1400
multifaryc1460
sundryfoldc1460
multiplicate?a1475
variable?a1475
sundrilyc1480
diversea1542
particoloured1591
multifarious1593
Protean1594
daedal1596
choiceful1605
Daedalian1605
multiplex1606
variated1608
diversified1611
multiplicious1617
variousa1634
multivarious1636
mosaic1644
multiple1647
omnigenous1650
chequered1656
plurifarious1656
ununiform1660
variate1677
disuniform1687
Proteusian1689
unsteady1690
unequable1693
inequable1721
variegating1727
varied1733
multitudinous1744
multifold1806
polygeneous1818
unequalized1822
ruleless1836
varicoloured185.
non-uniform1856
omnigener1857
polytypic1858
multiferous1860
variatious1871
variegated1872
polytypical1890
the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [adjective] > occurrence of variant forms
polymorphous1773
polytypic1858
polymorphic1859
heteromorphic1864
polytypical1890
polymorphistic1897
morphic1955
1858 J. D. Hooker Let. 14 Mar. in C. Darwin Corr. (1991) VII. 50 Had monotypic genera or oligotypic been at all materially less variable than polytypic it would not have escaped the sagacity of..Linnæus.
1878 Johnson's New Universal Cycl. IV. 376/2 The family [of shrew-mice]..is a very homogeneous one... The differences between its constituents are less than in any other of the related polytypic families.
1945 Bull. Amer. Mus. Nat. Hist. 85 16/2 This morphological scope may be almost entirely filled or exploited by known species if the genus has many (is polytypic).
1953 E. Mayr et al. Methods & Princ. Syst. Zool. ii. 29 Closely related allopatric forms are usually subspecies of a polytypic species.
1992 W. T. Parsons & E. G. Cuthbertson Noxious Weeds Austral. 371/2 A number of taxonomists..consider Cannabis to be a polytypic genus with at least three, and possibly more, species involved.
b. Biology. Of evolution: leading to new species by the splitting of existing ones. Cf. cladogenetic adj. at cladogenesis n. Derivatives. Now historical.
ΘΚΠ
the world > life > biology > biological processes > evolution > [adjective] > processes or types of evolution
high?1548
recapitulative1836
retrogressive1853
transmutational1861
ontogenetic1869
convergent1871
phylogenetic1876
correlative1877
ontogenic1878
phylogenetical1879
phytogenetic1882
monotypic1888
phytogenetical1888
polytypic1888
ontogenal1890
phylogenal1890
recapitulatory1890
tachygenetic1893
ontogenetical1894
anagenetic1896
orthogenic1896
orthogenetic1899
macroevolutionary1937
microevolutionary1937
proterogenetic1938
speciational1944
parapatric1953
cladogenetic1957
allochronic1960
stasigenetic1965
stasipatric1967
speciating1970
punctuational1976
tachygenic-
1888 J. T. Gulick in Jrnl. Linnean Soc.: Zool. 20 201 Polytypic Evolution or Divergent Evolution is any transformation of a species in which different types appear in different sections.
1907 Amer. Naturalist 41 211 Natural Selection without isolation effects monotypic evolution, and only by the aid of isolating factors of some kind results in polytypic evolution.
1975 Isis 66 495 To better describe the central problem of divergence he [sc. J. T. Gulick] introduced the phrases ‘monotypic evolution’ (the transformation of a species in a single line), and ‘polytypic evolution’ (the splitting of a single species into two or more distinct species).
2. gen. Composed of or having several types.
ΚΠ
1912 C. M. Gayley Representative Eng. Comedies p. lxxxiii Not only by its fusion of biblical characters, like Assuerus and Hester, with allegorical types, like Pride and the half-moral, half-native Vice, does the play give evidence of its polytypic nature, but by its atmosphere.
1980 J. R. Hinchliffe & D. R. Johnson Devel. Vertebr. Limb vi. 166 Fibres may be monotypic (that is, made up of one sort of unit) like collagen, or polytypic, like a muscle fibre.
1989 Brain 112 969 Whatever are the merits of classical syndromes as clinical diagnoses in neurology.., they are certainly too polytypic to serve as the elemental units of disordered language.
1996 Oceanologica Acta 19 323 Nearly all aspects of the life histories of individual marine-invertebrate species are characterized by ranges of sizes, seasonal variation, and functional flexibility..; that is, they are highly polytypic.
3. Crystallography. Exhibiting polytypism (polytypism n. 2); of the nature of a polytype.
ΘΚΠ
the world > matter > chemistry > crystallography (general) > crystal (general) > structures and forms > [adjective] > polytype
polytypic1944
1944 N. W. Thibault in Amer. Mineralogist 29 266 Following Baumhauer, the phenomenon is called ‘polytypism’ the adjective being ‘polytypic’ and each one of the different modifications a ‘type’.
1974 Verma & Trigundayat in C. N. R. Rao Solid State Chem. ii. 52 The list of polytypic substances includes minerals, layer silicates, chalcogenides, and several other inorganic and organic compounds.
2003 Jrnl. Physical Chem. A. 107 10470 More complex, closely spaced twins, stacking faults, and polytypic intergrowths are characteristic of coarsened H2O-ZnS.
4. = polythetic adj.
ΘΚΠ
the world > relative properties > kind or sort > [adjective] > sharing a number of characteristics
polythetic1940
polytypic1959
1959 M. Beckner Biol. Way of Thought ii. 25 Polytypic concepts are found in many branches of biological theory, but the clearest instances are afforded by taxonomy.
1961 G. G. Simpson Princ. Animal Taxon. ii. 43 The defining attributes do not appear in all individuals... The principle (which he calls ‘polytypic’) has been elucidated at greater length and in ultramodern terms by Beckner.
1995 S. O. Murray Lat. Amer. Male Homosexualities i. 5 Cross-cultural comparison needs to use polytypic classes, and not expect to be able to specify in advance what will be the combinations of ‘significant features’.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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adj.1858
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