单词 | reaggregate |
释义 | reaggregatev. Chiefly Science. 1. intransitive. To come together again as an aggregate. ΚΠ 1825 Lancet 3 Sept. 274/1 Atoms aggregate, arrange, disunite, and re-aggregate. 1850 L. A. Cahagnet Celestial Telegraph 93 These particles can never be annihilated, according to your physical notions, and can never re-aggregate to create other forms. 1910 Proc. Royal Soc. B. 83 104 The lower the surface tension of the solution, the greater the tendency to disaggregate, and the less the tendency to reaggregate. 1946 Q. Rev. Biol. 21 254/1 The colored granules..may disperse during the prophase and then reaggregate during the anaphase. 1962 H. Bloemendal et al. in A. Pirie Lens Metabolism 300 The subunits..reaggregate after removal of urea. 2006 Jrnl. Theoret. Biol. 243 98/2 By mixing disassociated cells of different types and then returning to a normal pH, they found that not only do the cells reaggregate, but they also sort such that cells of the same type are found in the same region. 2. transitive. To bring or collect (particles, fragments, etc.) together again. Also in extended use. ΚΠ 1836 H. Murray et al. Encycl. Geogr. (new ed.) II. 12 Ischia is composed for the most part of a rock which seems to consist of finely comminuted pumice, re-aggregated so as to form a tuffa. 1862 G. P. Scrope Volcanos (ed. 2) 45 A proportionate diminution of temperature..reaggregates them in a solid mass. 1910 Folk-lore 21 305 The little society is thus temporarily resolved into its primal elements, which are reaggregated at the end of the ceremony. 1956 Proc. National Acad. Sci. U.S.A. 42 828 When reaggregated and reared in tissue culture under identical conditions, each builds the specific type of architecture that is characteristic of its former destination. 1991 S. J. Gould Bully for Brontosaurus xxxv. 507 Miranda had been broken apart and reaggregated, perhaps more than once. 2001 O. Sacks Uncle Tungsten x. 111 The total amounts of carbon and hydrogen and oxygen always stayed the same. They might be reaggregated chemically, but their amounts were unchanged. Derivatives reˈaggregated adj. ΚΠ 1839 Penny Cycl. XV. 225/2 It is a re-aggregated mass of the disintegrated materials of granite. 1954 U.S. Patent 2,689,979 1/1 In the commercial production of re-aggregated wood, the raw material usually consists of small particles of wood..treated with a synthetic resin binding agent. 1991 L. Wolpert Triumph of Embryo (BNC) 69 Such buds containing re-aggregated cells do not develop normally but they can form jointed cartilage elements. This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022). < v.1825 |
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