| 单词 | zinc |
| 释义 | Word Frequency zinc(zɪŋk) noun 1. a brittle bluish-white metallic element that becomes coated with a corrosion-resistant layer in moist air and occurs chiefly in sphalerite and smithsonite. It is a constituent of several alloys, esp brass and nickel-silver, and is used in die-casting, galvanizing metals, and in battery electrodes. Symbol: Zn; atomic no: 30; atomic wt: 65.39; valency: 2; relative density: 7.133; melting pt: 419.58°C; boiling pt: 907°C 2. informal corrugated galvanized iron Derived forms zincic (ˈzincic) or zincous (ˈzincous) or zincoid (ˈzincoid) adjective zincky (ˈzincky) or zincy (ˈzincy) or zinky (ˈzinky) adjective Word origin C17: from German Zink, perhaps from Zinke prong, from its jagged appearance in the furnace |
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