| 单词 |
crystallization |
| 释义 |
crystallization|ˌkrɪstəlaɪˈzeɪʃən|
[n. of action f. crystallize v. So F. cristallisation.]
1. a. The action of forming crystals, or of assuming a crystalline structure, a process which takes place in many substances while cooling from a state of fusion or solution.
water of crystallization: the water held by certain salts as an essential part of their crystalline structure, which structure is destroyed when the water is lost by evaporation or driven off by heat.
1665Hooke Microgr. 87 In the Solution and Crystallization of Salts. 1707Curios. in Husb. & Gard. 136 Salts..dissolv'd in Water..separate themselves by Cristalization. 1791Hamilton tr. Berthollet's Dyeing I. i. iii. i. 214 It effloresces, that is, it parts with its water of crystallization in the air, and assumes the appearance of flour. 1878Huxley Physiogr. 222 The tree-like form which some bodies assume in the act of crystallisation.
b. fig.
1842Mill Let. 8 Feb. (1963) XIII. 498 This will necessarily require..a gradual crystallization of many thoughts at present held in a state of suspension. 1862Helps Organiz. Daily Life 32 All systems tend to a certain kind of crystallization. 1875Hamerton Intell. Life vii. ii. (1876) 234 The final fixing, and crystallization of her intellect.
2. concr. A crystallized formation or body.
1695Woodward Nat. Hist. Earth iv. (1723) 213 All other natural metallick and mineral Crystallizations. 1776J. Keir in Phil. Trans. XIV. 102 (title) On the Crystallizations observed in Glass. 1836W. Irving Astoria III. 93 Salt springs..forming beautiful crystallizations.
fig.1884Harper's Mag. June 56/1 The laws of a nation are the crystallizations of its historical experiences. |
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