单词 | homogen |
释义 | homogenn.ΘΚΠ the world > plants > part of plant > reproductive part(s) > seed > plant having seed > [noun] > monocot, dicot, or polycotyleden dicotyledon1727 monocotyledon1727 polycotyledon1828 dictyogen1841 monocot1854 homogen1866 dicot1877 monocotyl1877 1866 J. Lindley & T. Moore Treasury Bot. Homogens, a name given by Lindley to a division of Exogens characterised by the wood being arranged in the form of wedges, and not in concentric circles. 2. a. Biology. A part or organ homogenetic with another: see homogenetic adj. 1. ΘΚΠ the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [noun] > correspondence in structure homology1835 homogen1870 homogeny1870 homoplasy1870 homoplasmy1874 homotypy1874 parhomology1888 1870 E. R. Lankester in Ann. Nat. Hist. 6 43 The hœmochyle or blood-lymph system of Vertebrates has no homogen, or but a very rudimentary one, in the other groups of animals. 1875 Contemp. Rev. 26 946. b. A race of organized beings descended from a common ancestor. ΘΚΠ the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [noun] > descent from common ancestor > group having parentela1881 homogen1888 sibship1906 clade1957 cladistic1965 1888 Pop. Sci. Monthly Dec. 179 We can consider the different men as forming a relative homogen—a species, as M. de Quatrefages contends. This entry has not yet been fully updated (first published 1899; most recently modified version published online September 2021). < n.1866 |
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