单词 | amphi- |
释义 | amphi-prefix Used in many derivatives and compounds. amphidiarthrosis n. /ˌæmfɪdaɪɑːˈθrəʊsɪs/ Anat. a form of articulation (see quots.). ΚΠ 1842 R. Dunglison Med. Lexicon (ed. 3) Amphidiarthrosis, a name given by Winslow to the temporo-maxillary articulation, because, according to that anatomist, it partakes both of ginglymus and arthrodia. 1890 J. S. Billings National Med. Dict. Amphidiarthrosis, joint having characteristics of two classes, both hinge and gliding, as articulation of lower jaw. amphidromic adj.2 /-ˈdrɒmɪk/ [Greek ἀμϕίδρομος running both ways] (see quots.). ΚΠ 1909 Cent. Dict. Suppl. Amphidromic. 1938 Nature 11 June 1067/1 The effect of uniting the two waves which will have the higher part of their crests on opposite shores is to produce a set of amphidromic points. These are points at which there is no tidal rise and fall of the water level. 1947 Sci. News 4 92 In the northern hemisphere the tidal oscillation will appear to rotate in an anticlockwise direction round such a point, and cotidal lines, joining points which have high water at the same time, will radiate from it. The point is called an amphidromic point. 1947 Sci. News 4 92 The rotation of the tide-producing forces round the sea also operates so as to produce an amphidromic system. amphikaryotic adj. /-kærɪˈɒtɪk/ [ < Greek κάρυον nut, kernel] Biol. of a nucleus, having two haploid sets of chromosomes. ΘΚΠ the world > life > biology > biological processes > genetic activity > genetic components > [adjective] > chromosome > ploidy haploid1906 amphikaryotic1909 polyenergid1911 polyploid1911 triploid1911 tetraploid1914 hexaploid1920 octoploid1921 pentaploid1921 triplex1921 orthoploid1923 aneuploid1924 heteroploid1926 allopolyploid1927 monoploid1928 haplontic1929 hyperdiploid1929 amphidiploid1930 hyperploid1930 hypoploid1930 polysomic1930 mixoploid1931 allotetraploid1932 autopolyploid1934 autotetraploid1935 autoploid1937 polysomatic1937 monosomatic1939 polyploidizing1941 polyploidogenic1944 amphiploid1945 merodiploid1961 pseudodiploid1963 1909 J. W. Jenkinson Exper. Embryol. 267 One blastomere has a male and a female nucleus, and therefore 2 n chromosomes (amphikaryotic), while the other has only a female (thelykaryotic). amphimixis n. /æmfɪˈmɪksɪs/ [modern Latin (A. Weismann, 1891), < Greek μίξις mingling: compare ἀμϕιμιγνύναι to mix up thoroughly] Biol. (see quot. 1949). ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > types of reproduction > [noun] > sexual syngenesis1836 bisexuality1850 gamogenesis1858 amphigony1876 amphimixis1893 oogamy1894 androgenesis1895 merogamy1901 gynogenesis1925 1893 W. N. Parker & H. Rönnfeldt tr. A. Weismann Germ-plasm 20 Amphimixis..consists in the mingling of two individuals or of their germs, and owing to its constant connection with reproduction in multicellular organisms it is usually spoken of as ‘sexual reproduction’... Amongst unicellular organisms..amphimixis is widely spread..in the form of conjugation. 1909 W. R. Sorley Interpr. Evol. 23 It throws off certain cells which have the power of reproducing organisms like itself—this result being dependent in all the higher organisms upon amphimixis. 1913 Amer. Naturalist 47 282 Winkler divides all reproductive phenomena into three divisions, namely: Amphimixis, Pseudomixis, and Apomixis. 1949 C. D. Darlington & K. Mather Elem. Genetics 377 Amphimixis, reproduction by the fusion of two gametes in fertilization. As opposed to Apomixis. Amphineura n. /-ˈnjʊərə/ [modern Latin (H. von Jhering, 1876, in Jahrb. d. deut. Malacozool. Ges. III. 128): compare Greek νεῦρον nerve] Zool. (pl.) a group of bilaterally symmetrical molluscs containing the chitons and related forms. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > amphineura or chitons chiton1815 sea-caterpillara1843 sea-woodlouse1863 mail-shell1867 sea-boat1884 sea-bug1884 Amphineura1889 1889 Cent. Dict. Amphineura. 1906 G. Bourne tr. Pelseneer Mollusca ii. 40 When Chaetoderma and Neomenia were investigated from an anatomical point of view, von Jhering united them..in a division of ‘Worms’, which he called Amphineura. 1922 Chambers's Encycl. I. 238/2 Amphineura are primitive gasteropods. 1945 E. Step & A. L. Wells Shell Life 181 The orders [of Gastropoda] are only four, but several..have been divided into sub-orders. The first of these orders (Amphineura) consists of the Mail-shells. ˈamphiodont adj. /-əʊdɒnt/ [ < Greek ὀδούς, ὀδοντ- tooth] Entomol. applied to a form of the mandibles in stag-beetles intermediate between the priodont and teleodont. ΚΠ 1883 Athenæum 29 Dec. 870/3 Four very distinct phases of development in their mandibles, which the author [sc. F. Leuthner] proposed to term ‘priodont’, ‘amphiodont’, ‘mesodont’, and ‘telodont’. 1932 J. S. Huxley Probl. Relative Growth vii. 209 A specimen is classified as Amphiodont if a gap is present which is considered larger than the normal gap between two teeth, Prionodont if it is considered not to exceed this size. amphipneustic adj. /-ˈ(p)njuːstɪk/ [Formed as amphipneust n. + -ic suffix] Zool. having breathing-pores at both ends of the body, as certain dipterous larvæ. ΚΠ 1891 H. M. Bernard & M. Bernard tr. A. Lang Text-bk. Compar. Anat. i. 482 This amphipneustic tracheal system is found in many parasitic or half-parasitic Diptera larvæ. 1899 Cambr. Nat. Hist. VI. 450 Other larvæ have a pair of stigmata placed at the termination of the body, and another pair near the anterior extremity..; these larvæ are said to be ‘amphipneustic’. 1957 O. W. Richards & R. G. Davies Imms's Gen. Textbk. Entomol. (ed. 9) i. 134 Amphipneustic.—Only the prothoracic and the posterior abdominal spiracles are open. This type is a common one among larval Diptera. ˌamphi-proˈstylar adj. of or pertaining to an amphi-prostyle. ΘΚΠ society > faith > artefacts > sanctuary or holy place > temple > [adjective] > with front and rear porticoes amphi-prostylar1875 society > leisure > the arts > visual arts > architecture > column > [adjective] > having specific arrangement of columns dipteric1664 porticoed1665 false-wingedc1720 round-wingedc1720 peripteral1768 pseudodipteral1771 monopteralc1809 dipteral1812 apteral1834 pseudoperipterala1844 amphi-prostylar1875 1875 Encycl. Brit. II. 459 A temple with a portico at each end is said to be amphiprostylar. amphirhine adj. /ˈæmfɪraɪn/ [ < modern Latin Amphirhinus, neuter plural Amphi-rhina, < Greek ῥίν- nose] Zool. belonging to the Amphirhina, a division (comprising the large majority) of skulled vertebrates, having the nasal orifice double; two-nostrilled; opp. monorhine adj. ΚΠ 1871 T. H. Huxley Man. Anat. Vertebr. Animals 147 The other amphirhine fishes. Draft additions 1993 amphiˈpathic adj. [ < Greek πάθος experience, state, property] Chem. having both a hydrophilic and a hydrophobic part; consisting of such molecules. ΘΚΠ the world > matter > chemistry > chemical properties > [adjective] > amphipathic amphipathic1936 amphiphilic1948 1936 G. S. Hartley Aqueous Solutions of Paraffin Chain Salts vii. 44 It is..because the paraffin-chain ion is *amphipathic that the paraffin-chain salts are good emulsifying, peptising, foaming and cleaning agents. 1972 Sci. Amer. Feb. 31/1 The lipids found in membranes are amphipathic. 1989 Nature 5 Jan. 94/2 This N-terminal layer is connected by a long loop to another layer which consists of two pairs of antiparallel amphipathic helices. Draft additions 1993 ˈamphipath n. an amphipathic molecule or substance. ΘΚΠ the world > matter > chemistry > chemical properties > [noun] > quality of being amphipathic > molecule or substance amphipath1971 1971 New Scientist 14 Jan. 64/1 Liposomes, incorporating positively charged *amphipaths,..are, to all intents and purposes, impermeable to monovalent cations like K+ or Na+, but permeable to anions. 1980 Jrnl. Biol. Chem. 255 9331 (heading) The effect of cholesterol and other intercalated amphipaths on the contour and stability of the isolated red cell membrane. Draft additions 1993 amˈphipathy n. the quality of being amphipathic. ΘΚΠ the world > matter > chemistry > chemical properties > [noun] > quality of being amphipathic amphipathy1936 1936 G. S. Hartley Aqueous Solutions of Paraffin Chain Salts vii. 44 The property is essentially the simultaneous presence of separately satisfiable sympathy and antipathy for water. I propose, therefore, to call this property ‘*amphipathy’—the possession of both feelings. 1979 D. Chapman et al. in R. Perron Physicochimie des Composés Amphiphiles (Colloques Nationals du CNRS) 209/1 This property of amphipathy, this duality of properties within the same molecule, has great significance for all biology. Draft additions 1997 amphiˈblastula n. Zool. a blastula composed predominantly of two different cell types, which constitutes a free-swimming larval form in certain sponges. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > embryo or fetus > [noun] > blastula periblastula1876 macromere1877 micromere1877 blastula1887 amphiblastula1888 1888 Proc. Boston Soc. Nat. Hist. 23 76 The walls were either double or single on different sides of the same *amphiblastula in Halichondria. 1940 Parker & Haswell Text-bk. Zool. (ed. 6) I. iii. 120 The embryo leaves the parent sponge in the peculiar stage to which the name of amphiblastula is applied. 1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) iii. 25/1 The flagellated embryo is liberated from the parent as an amphiblastula..,and generally swims for a time. Draft additions 1997 amphiˈcarpic adj. Bot. = amphicarpous adj. ΘΚΠ the world > plants > part of plant > reproductive part(s) > fruit or reproductive product > plant that bears fruit > [adjective] > bearing fruit or fruitful > of specific form piluliferous1697 angiocarpous1835 amphicarpic1846 platycarpous1858 strombuliferous1859 trachycarpous1860 amphicarpous1866 1846 Florist's Jrnl. 6 152 *Amphicarpic, bearing fruit of different forms, or which ripens at various seasons. 1964 Amer. Jrnl. Bot. 51 26 A more detailed investigation of the physiology of the seeds and seedlings of a typical amphicarpic plant. Draft additions 1997 ˈamphicyte n. Anat. = satellite cell at satellite n. 8. ΘΚΠ the world > life > biology > substance > cell > types of cells > [noun] > other types of cells reticular cell1832 torula1833 reserve cell1842 subcell1844 parenchyma cell1857 pedicel cell1858 nettle cell1870 heterocyst1872 prickle cell1872 angioblast1875 palisade cell1875 sextant1875 spindle cell1876 neuroblast1878 body cell1879 plasma cell1882 reticulum cell1882 stem cell1885 Langhans1886 basal cell1889 pole cell1890 myelocyte1891 statocyst1892 mast cell1893 thrombocyte1893 iridocyte1894 precursor1895 nurse cell1896 amacrine1900 statocyte1900 mononuclear1903 oat cell1903 myeloblast1904 trochoblast1904 adipocyte1906 polynuclear1906 fibrocyte1911 akaryote1920 Rouget cell1922 Sternberg–Reed1922 amphicyte1925 monoblast1925 pericyte1925 promyelocyte1925 pituicyte1930 agamete1932 sympathogonia1934 athrocyte1938 progenitor1938 Reed–Sternberg cell1939 submarginal1941 delta cell1942 mastocyte1947 squame1949 podocyte1954 transformed cell1956 transformant1957 spheroplast1958 pinealocyte1961 immunocyte1963 lactotroph1966 mammotroph1966 minicell1967 proheterocyst1970 myofibroblast1971 cybrid1974 1925 Strong & Elwyn Bailey's Text-bk. Histol. (ed. 7) ix. 170 The capsule cells (*amphicytes) enveloping the cerebrospinal and sympathetic ganglion cells. 1978 Acta Anatomica 102 238/2 Surrounding individual ganglionic neurons were well-defined satellite cells (amphicytes) to form the ‘capsule’. 1985 C. R. Leeson et al. Textbk. Histol. (ed. 5) vii. 219/2 Each perikaryon has a ‘capsule’ formed by a single layer of small, flattened, low cuboidal cells, the satellite cells or amphicytes. Draft additions 1997 amphiprotic adj. /-ˈprəʊ-/ [ < German amphiprotisch (coined by J. N. Brönsted 1930, in Zeitschr. f. angew. Chem. 43 231/1)] Chem. designating a solvent (or solute) which can act as either a donor or an acceptor of protons; amphoteric. ΘΚΠ the world > matter > chemistry > physical chemistry > solvents and solutes > [adjective] > amphoteric amphiprotic1931 1931 Chem. Rev. 8 193 Thus we recognise water as *amphiprotic since it is capable of the acid reaction H2O↔H+ + OH− and the basic reaction H2O + H+↔H3O+. 1966 J. A. Timm Gen. Chem. (ed. 4) xxvii. 369 A solution of sodium hydrogen carbonate contains the amphiprotic hydrogen carbonate ion. 1991 Chem. & Pharm. Bull. 39 2929/1 The solutes having amphiprotic substituents usually exhibited the acceleration effect. Draft additions 1997 amphitrichate adj. /-ˈtrɪk-/ Microbiol. = amphitrichous adj. at Additions below. ΘΚΠ the world > life > biology > organism > micro-organism > bacterium > [adjective] > types of vibrionic1850 vibrioid1864 micrococcal1881 gonococcal1888 pneumococcic1891 spirillar1891 pneumococcal1895 pneumococcous1897 streptococcal1897 streptococcic1897 paratyphoid1898 schizomycetic1898 amphitrichous1900 lophotrichous1900 staphylococcal1900 streptococcous1902 streptothricial1903 staphylococcic1904 rhizobial1906 meningococcal1907 meningococcic1907 clostridial1909 botulinum1910 coccoid1912 treponemal1913 Salmonella1916 leptospiral1924 neisserian1925 rickettsial1925 coccal1928 amphitrichate1929 botulinal1939 eubacterial1946 myxococcal1946 coryneform1952 neisserial1955 myxobacterial1957 listerial1961 listeric1961 cyanobacterial1974 1929 Topley & Wilson Princ. Bacteriol. & Immunity I. ii. 25 There may be a single flagellum at each pole, the *amphitrichate condition. 1983 Current Microbiol. VIII. 234 The genus Campylobacter..contains bacteria that are Gram-negative, motile, amphitrichate. Draft additions 1997 amphiˈtrichous adj. /-ˈtrɪk-/ Microbiol. designating or pertaining to bacteria having one or more flagella at each pole. ΘΚΠ the world > life > biology > organism > micro-organism > bacterium > [adjective] > types of vibrionic1850 vibrioid1864 micrococcal1881 gonococcal1888 pneumococcic1891 spirillar1891 pneumococcal1895 pneumococcous1897 streptococcal1897 streptococcic1897 paratyphoid1898 schizomycetic1898 amphitrichous1900 lophotrichous1900 staphylococcal1900 streptococcous1902 streptothricial1903 staphylococcic1904 rhizobial1906 meningococcal1907 meningococcic1907 clostridial1909 botulinum1910 coccoid1912 treponemal1913 Salmonella1916 leptospiral1924 neisserian1925 rickettsial1925 coccal1928 amphitrichate1929 botulinal1939 eubacterial1946 myxococcal1946 coryneform1952 neisserial1955 myxobacterial1957 listerial1961 listeric1961 cyanobacterial1974 1900 Dorland Med. Dict. 38/1 *Amphitrichous. 1928 F. W. Tanner Bacteriol. iv. 63 The adjectives used to denote the presence or absence of flagella, and their location when present, are..amphitrichous-tufts of flagella on both ends. 1986 M. Kogut tr. Schlegel Gen. Microbiol. ii. 59 Bipolar polytrichous flagellation is called amphitrichous. This entry has not yet been fully updated (first published 1884; most recently modified version published online June 2011). < prefix1842 |
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