| 释义 |
dialytic, a.|daɪəˈlɪtɪk|
[ad. Gr. διαλυτικός able to dissolve, f. διάλυτος separated, dissolved, f. διαλύειν: see dialysis.]
1. Chem. Of the nature of or pertaining to chemical dialysis.
1861Graham in Phil. Trans. 186 The most suitable of all substances for the dialytic septum appears to be the commercial material known as vegetable parchment or parchment paper. 1867J. Attfield Chem. (1885) 813 Dialysed iron or dialytic iron. 1876Catal. Sci. App. S. Kens. Mus. §2546 Experiments on absorption and dialytic separation of gases by colloid septa.
†2. Med. ‘Relating or pertaining to dialysis (sense 3); relaxing.’ Syd. Soc. Lex. 1883. Obs.
3. Geol. and Min. (See quot.)
1877A. H. Green Phys. Geol. iii. §i. 93 Those derivative rocks, which have been formed not by the mechanical wear and tear of pre-existing rocks, but by the chemical decomposition of their constituents, are sometimes called Dialytic.
4. Math. Of or pertaining to the differentiation of equations by the process of dissolution described in the quotation.
1853Sylvester in Phil. Trans. CXLIII. i. 544 Dialytic. If there be a system of functions containing in each term different combinations of the powers of the variables in number equal to the number of the functions, a resultant may be formed from these functions, by, as it were, dissolving the relations which connect together the different combinations of the powers of the variables, and treating them as simple independent quantities linearly involved in the functions. The resultant so formed is called the Dialytic Resultant of the functions supposed; and any method by which the elimination between two or more equations can be made to depend on the formation of such a resultant is called a dialytic method of elimination.
5. dialytic telescope: a telescope in which achromatism is effected by means of two lenses separated and placed at some distance from each other.
1846E. West tr. Peschel's Elem. Physics II. 136 Prof. Littrow of Vienna in 1827..proposed that the telescope should be fitted up with its proper object glass of crown glass; and that a flint glass lens, of much smaller diameter, should be placed at a proper distance behind the former, to counteract the prismatic dispersion of the rays. The name of dialytic telescopes was given to these instruments. |