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lithium 音标拼音: [l'ɪθiəm] n. 锂 锂 lithium n 1: a soft silver- white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals [ synonym: { lithium}, { Li}, { atomic number 3}] Lithium \ Lith" i* um\ ( l[ i^] th"[ i^]*[ u^] m), n. [ NL., from Gr. li` qeios of stone, fr. li` qos stone.] ( Chem.) A metallic element of the alkaline group, occurring in several minerals, as petalite, spodumene, lepidolite, triphylite, etc., and otherwise widely disseminated, though in small quantities. [ 1913 Webster] Note: When isolated it is a soft, silver white metal, tarnishing and oxidizing very rapidly in the air. It is the lightest solid element known, specific gravity being 0. 59. Symbol Li. Atomic weight 7. 0 So called from having been discovered in a mineral. [ 1913 Webster] |
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