| 释义 |
ˌsemi-meˈtallic, a.
[semi- 8 i.]
Partly metallic; spec. of the nature of a semi-metal. Cf. semi-metal.
1748–52J. Hill Mat. Med. (J.), The semimetallick recrements. 1794Kirwan Elem. Min. (ed. 2) I. 164 Lustre, of the grey part, silky, verging to the semimetallic. 1804Edin. Rev. III. 393 Semi-metallic matter. 1974D. M. Adams Inorg. Solids v. 88 In contrast, the heaviest elements of the same groups (Pb, Bi, Po) are metallic or semimetallic as revealed by a progressive change down the group in properties such as electrical conductivity and optical behaviour, as well as by changes of structure type. |