单词 | sieve-plate |
释义 | sieve-platen. 1. Botany. A sieve-like plate on the wall of a plant-cell. (Cf. sieve n. Compounds 3.) ΘΚΠ the world > plants > part of plant > cell or aggregate tissue > [noun] > cell > parts of cell > cell wall and parts septum1720 pit1839 sieve-plate1875 sieve-pore1875 sieve-tube1875 anticlinal1882 periclinal1882 sieve-vessel1882 pit cavity1884 pit membrane1884 middle lamella1887 torus1887 tonoplast1895 pit canal1911 pit chamber1917 pit aperture1918 pit pair1933 pit field1934 margo1965 sieve-tissue- 1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. 24 The sieve-plates do not at present show anything of the subsequent more complicated structure. 1882 S. H. Vines tr. J. von Sachs Text-bk. Bot. (ed. 2) 89 In this condition the septum, perforated by a number of pores, is termed a Sieve-plate; it is usually broader than the diameter of the tube, which therefore appears dilated at..the sieve-plates. 2. Zoology. (See quot. 1888.) ΘΚΠ the world > animals > animal body > general parts > covering or skin > [noun] > hard or protective covering > scale > large scale or bony plate > calcaveous plate at base of arm sieve-plate1888 1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 566 A calcareous plate placed at the base of the arm interradially, and called in the latter case a sieve-plate. 3. In paper-making, a plate through which pulp is strained. ΘΚΠ society > occupation and work > equipment > paper-making equipment > [noun] > strainer sand-table1812 knotter1875 sieve-plate1891 1891 in Cent. Dict. This entry has not yet been fully updated (first published 1910; most recently modified version published online June 2018). < n.1875 |
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