单词 | superposed |
释义 | superposedadj. 1. gen. Placed above or on something else; (of two or more things) placed one above the other. Also figurative. ΘΚΠ the world > space > relative position > high position > position upon > [adjective] > placed upon onlaid1674 superimposed1783 superposed1805 1805 tr. E. Ólafsson & B. Pálsson Trav. in Iceland 104 The rays of the sun can penetrate and partly melt the ice; which, thus possessing no longer a sufficient thickness to support their super-posed mass, often break and sink down. 1875 tr. G.-J. Witkowski (title) A Movable Atlas showing the positions of the various Organs of Voice, Speech, and Taste, by means of superposed coloured plates. 1897 G. Allen Evol. Idea of God (U.S. ed.) xvi. 356 I will not attempt to distinguish..between the various superposed ideas in the sacrificial ceremony. 1921 E. L. White Andivius Hedulio iv. xxxiii. 480 The three wall-spaces behind the counter were filled from column to column with tiers of superposed recesses. 1991 R. Ling Rom. Painting 9 The largest piece..shows parts of four superposed friezes. 2. Science. Brought into the same position so as to coincide; occupying, wholly or partly, the same space (actually, apparently, or notionally). ΘΚΠ the world > matter > physics > [adjective] > having co-incidence of space superposed1829 the world > matter > physics > electromagnetic radiation > light > polarization > [adjective] > co-incident superposed1829 the world > relative properties > number > geometry > [adjective] > of geometrical relation > (capable of) being exactly superposed matchy1611 congrual1635 congruous1656 congruent1706 superposable1806 superposed1885 1829 Philos. Trans. (Royal Soc.) 119 195 We shall now briefly notice the phænomena which are presented by the superposed images when the film of fluid has its surfaces parallel. 1885 C. Leudesdorf tr. L. Cremona Elements Projective Geom. 169 To construct the self-corresponding elements of two superposed projective forms. 1913 J. L. S. Hatton Princ. Projective Geom. ix. 116 Analytical relation between two superposed projective figures. 1954 Proc. Physical Soc. B. 67 584 Anhysteretic magnetization of a ferromagnetic material is the magnetization J resulting from the application of a steady field H and a superposed large alternating field. 2003 N.Y. Times (National ed.) 7 Mar. b47/3 They relate to the tendency of superposed quantum states to collapse to a single value—either on or off—when the real world impinges. 3. Botany. Situated directly above another part of the same kind (or one directly above another), as leaves on a stem, etc. Frequently contrasted with alternate. ΘΚΠ the world > plants > part of plant > (defined by) distribution, arrangement, or position > [adjective] > alternating or not alternating alternate1716 superposed1833 1833 Edinb. New Philos. Jrnl. 15 178 It has several points in common,—as the fleshy disk, the two superposed ovules in each cell, the indehiscent fruit, [etc.]. 1869 M. T. Masters Veg. Teratol. iii. i. ii. 377 There appear to be a series of corollas enclosed one within the other, the lobes of which are generally alternate with one another, but which sometimes are superposed. 1889 Jrnl. Royal Hort. Soc. 11 90 It differs from all other double Daffodils known to me as being wholly composed of perianth segments, superposed in six rows. 1921 W. H. Lang tr. Strasburger's Text-bk. Bot. (ed. 5) 522 In most cases they were more complicated, whorls of superposed scale-leaves separating the whorls of specialised sporangiophores. 1961 Amer. Jrnl. Bot. 48 813/2 It was not possible to determine..whether the leaves of adjacent whorls are superposed or adjacent. 2009 J. E. Eckenwalder Conifers of World viii. 154/1 As loss and replacement of limbs proceeds during the life of the tree..a tree may appear to have several superposed crowns within the overall cylindrical outline. 4. Physical Geography. = superimposed adj. 1b. ΘΚΠ the world > the earth > water > rivers and streams > system > [adjective] autogenetic1890 superposed1894 trellised1895 antecedent1927 radial1931 pinnate1932 1894 W. M. Davis & L. S. Griswold in Bull. Geol. Soc. Amer. 5 517 The innermost Cretaceous margin may be discovered by means of the relations of revived and superposed streams and rivers. 1895 Geogr. Jrnl. 5 143 Superposed drainage, settling down into unknown structures through an unconformable cover. 1932 Jrnl. Geol. (Chicago) 40 495 The transverse master stream is a superposed consequent. 2003 F. Press Understanding Earth (ed. 4) xiv. 320/2 Such a superposed stream flows through resistant formations because its course was established at a higher level, on uniform rocks, before downcutting began. This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022). < adj.1805 |
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