| 释义 |
crystalloid, a. and n.|ˈkrɪstəlɔɪd|
[f. Gr. κρύσταλλ-ος crystal + -oid.]
A. adj. Crystal-like, of crystalline form or character, esp. as contrasted with colloid (a. 2).
1862H. Spencer First Princ. ii. xiii. §103 Organic matter has the peculiarity that its molecules are aggregated into the colloid and not into the crystalloid arrangement. 1878Gurney Crystallogr. 29 In crystalloid forms occurring in nature the linear dimensions are subject to no known law.
B. n.
1. A crystalloid or crystalline body or substance, as distinct from a colloid (n. 2).
Crystalloids have, in solution, the power (which colloids have not) of passing easily through membranes.
1861T. Graham in Phil. Trans. (1862) 183 Opposed to the colloidal is the crystalline condition. Substances affecting the latter form will be classed as crystalloids. 1878T. Bryant Pract. Surg. I. 10 As freely as a colloid is penetrated by a crystalloid.
2. A protoplasmic body resembling a crystal in form, occurring in certain vegetable cells.
1875Bennett & Dyer Sachs' Bot. 50 The term Crystalloids [was] proposed by Nägeli..Crystalloids containing colouring matters are found in the petals and fruits. |