单词 | monosymmetrical |
释义 | monosymmetricaladj. Now rare. 1. = monosymmetric adj. 2. ΘΚΠ the world > plants > part of plant > (defined by) distribution, arrangement, or position > [adjective] > monosymmetrical or polysymmetrical monosymmetrical1875 polysymmetrical1875 actinomorphous1879 actinomorphic1880 polysymmetric1992 1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. i. iii. 184 A shoot with alternating leaves in two rows is also simply bilateral without being monosymmetrical. 1898 H. C. Porter tr. E. Strasburger et al. Text-bk. Bot. 16 When..a division into two similar halves is only possible in one plane, the degree of symmetry is indicated by the terms simply symmetrical, monosymmetrical, or zygomorphic. 1905 New Phytologist 4 87 The motile cell in these simple forms often shows the typical one-sided (monosymmetrical) structure characteristic of the zoospores and gametes of the Phæophyceæ. 1995 Internat. Jrnl. Plant Sci. 156 743/2 Monosymmetrical flowers..tend to display imbricate patterns that are either ascending or descending. 2003 Jrnl. Constructional Steel Res. 59 844 Steel members from rolled steel..joists..and from monosymmetrical welded-sheet I-sections..are considered. 2. Crystallography. = monoclinic adj. Cf. monosymmetric adj. 1. ΘΚΠ the world > matter > chemistry > crystallography (general) > crystal (general) > crystal systems > [adjective] > monoclinic monoclinohedral1832 oblique1835 monoclinate1847 monoclinohedric1854 monoclinic1856 monoclinometric1858 monosymmetric1880 monosymmetrical1888 1888 Proc. Royal Soc. 44 454 Dr. Burghardt..reports as follows:..Crystal system monosymmetrical, oblique rectangular prism, formed by the combination of the ortho- and clino-pinacoids. 1932 H. L. Brose tr. M. Planck Introd. to Theoret. Physics IV. ii. i. 134 The crystals of the non-symmetrical, monosymmetrical and rhombic system..are optically biaxial (topaz positive; aragonite and mica negative). Derivatives monosyˈmmetrically adv. rare ΘΚΠ the world > plants > part of plant > (defined by) distribution, arrangement, or position > [adverb] > arranged in a specific way interruptedly1753 accumbent1801 trichotomously1830 unilaterally1830 furcately1846 uniseriately1846 secundly1870 monosymmetrically1875 polysymmetrically1875 1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. 533 If..the parts are all arranged in whorls, they are usually distributed monosymmetrically or polysymmetrically on the receptacle. 1992 Internat. Jrnl. Plant Sci. 153 S107/1 They start monosymmetrically (are bilaterally symmetric) and become disymmetric—in contrast to many other flowers. This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022). < adj.1875 |
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