| 释义 |
▪ I. platina Now rare or Obs.|ˈplætɪnə, pləˈtiːnə|
[a. Sp. platina (plaˈtina) platinum, dim. from plata silver: see -ine4.]
The earlier name of platinum.
1750Phil. Trans. XLVI. 584 Several Papers concerning a new Semi-Metal, called Platina. 1754Lewis ibid. XLVIII. 638 The substance brought into England under the name of platina appears a mixture of dissimilar particles. 1786Jefferson Writ. (1859) I. 505 You have often heard of the metal, called platina, to be found only in South America. 1815J. Smith Panorama Sc. & Art II. 91 Platina is the heaviest body known to exist. 1840Penny Cycl. XVIII. 230/2 Platina or Platinum an important metal. [In the article platina is the only form used.] 1865Pall Mall G. 28 June 7 The prisoner denied that he had ever stolen any platina, and said he was innocent of the charge.
b. attrib. (usually = Consisting or made of platinum) and Comb.
1794Pearson in Phil. Trans. LXXXIV. 388 A small piece of purified white lac, in a platina spoon. 1819J. G. Children Chem. Anal. 375 Held in a pair of platina pincers. 1825J. Nicholson Operat. Mechanic 356 He..determined to try to draw platina-wire. 1883Hardwich's Photogr. Chem. (ed. Taylor) 307 To have it [an enlargement] made on a more stable and permanent base than silver, hence carbon and platina printing find most favour for such a purpose.
▪ II. platina
see platin. |