单词 | homotype |
释义 | homotypen. 1. Biology. A part or organ having the same type of structure as another, a homologue; applied esp. to serially or laterally homologous parts in the same organism. ΘΚΠ the world > life > biology > physical aspects or shapes > shape > [noun] > condition of being similar > similar part homotype1840 1840 T. A. G. Balfour Typ. Char. Nature (1860) 64 A general likeness is sufficient in nature to constitute, in the eyes of naturalists, a type, and hence they speak of such as homologies or homotypes. 1849 R. Owen Disc. Nature of Limbs 19 The femur, the homotype of the humerus. 1854 R. Owen Struct. Skeleton & Teeth in Orr's Circle Sci.: Org. Nature I. 170 So far as each segment..is a repetition or ‘homotype’ of every other segment. 1873 St. G. Mivart Lessons Elem. Anat. vi. 215 The successive vertebræ..are serial homologues, or homotypes. 1939 Ann. Ent. Soc. Amer. XXXII. 695 Homotype: 1. That which is constructed on the same plan or type—as metameres of the body. Not a nomenclatural term. 2. Taxonomy. A specimen identified as a type by someone other than the author of the original description, after comparison with the holotype. ΘΚΠ the world > life > biology > taxonomy > [noun] > archetype, syntype, etc. species1644 type1840 type-genus1840 type-species1840 archetype1849 type-specimen1875 monotype1881 necrotype1883 cotype1893 paratype1893 topotype1893 homotype1896 genotype1897 holotype1897 homoeotype1905 lectotype1905 neotype1905 syntype1909 allotype1910 haplotype1914 1896 Ld. Walsingham & J. H. Durrant Rules for Nomencl. 13 A specimen named by another than the author, after comparison with the type, is called a Homotype... We have added the term Homotype to those proposed by Mr. Oldfield Thomas. 1939 Ann. Ent. Soc. Amer. XXXII. 695 Homotype:... 2. Equals Homoeotype. 1967 R. E. Blackwelder Taxon. xxix. 591 Specimens identified as to time or person of identification. Metatypes, homotypes (homoeotypes), and so on. Derivatives homotypal adj. /ˈhɒməʊtaɪpəl/ = homotypic adj. 1. ΘΚΠ the world > life > biology > physical aspects or shapes > shape > [adjective] > similar homotypal1849 homotypical1870 homomorphic1872 homotypic1886 1849 R. Owen Disc. Nature of Limbs 29 To discern their homotypal relations and their classification. 1871 H. Macmillan True Vine (1872) iii. 102 The vine presents a repetition both of homotypal parts and of homotypal arrangement of parts. homotypy n. /ˈhɒməʊtaɪpi//həʊˈmɒtipi/ relation of homotypes; homology; esp. serial or lateral homology. ΘΚΠ the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [noun] > correspondence in structure homology1835 homogen1870 homogeny1870 homoplasy1870 homoplasmy1874 homotypy1874 parhomology1888 1874 Pop. Encycl. (at cited word) Homotypy, another term for serial homology. 1878 F. J. Bell & E. R. Lankester tr. C. Gegenbaur Elements Compar. Anat. 64 Homotypical organs..are often so changed that their homotypy cannot be recognised, and has to be worked out. This entry has not yet been fully updated (first published 1899; most recently modified version published online March 2022). homotypeadj. Cytology. = homotypic adj. 2. ΘΚΠ the world > life > biology > biological processes > genetic activity > [adjective] > stages of mitosis or meiosis homotypical1870 heterotypical1888 homoeotypical1888 heterotypic1889 homoeotypic1889 skein1889 heterotype1895 homotype1895 synaptic1895 synaptenic1900 presynaptic1903 homotypic1904 dictyate1905 post-meiotic1905 premeiotic1905 telophasic1907 postsynaptic1909 metaphase1912 prophasic1912 telosynaptic1912 interkinetic1927 synapsed1931 synizetic1931 interphasic1948 1895 Ann. Bot. 9 479 The indifference manifested in the second mitosis in animals..as to whether it be heterotype or homotype, is of some theoretical interest. 1907 C. E. Walker Essent. Cytol. v. 46 The first division following the meiotic is very commonly given a special name—the ‘homotype’ division. 1920 L. Doncaster Introd. Study Cytol. v. 67 This second division is therefore spoken of as a homotype mitosis. This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2018). < n.1840adj.1895 |
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