iridium
iridium 英 [ɪ'rɪdɪəm;aɪ-] 美 [ɪ'rɪdɪəm]
n. [化学] 铱（Ir）
名词复数:iridiums
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- n. [化学] 铱（Ir）
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1. They’re also seeking a cheaper catalyst than iridium.
他们也在寻找一种比铱更便宜的催化剂。
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2. Analyzing the fossils at this small site, they counted 52 distinct species just below the iridium layer.
他们分析了这个小地区的化石层，一共计算了在铱层下面的52个不同物种。
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3. In rats, 20-nano-meter–diameter agglomerations of at least 100 radioactively labeled iridium particles entered the brain whether inhaled through the nose or pumped directly into the lungs.
大鼠体内，由至少100个放射性标记的铱粒子组成的直径20纳米的凝块，由鼻部吸入或肺部直接泵入，再进到脑中。
- iridium (n.) silver-white metallic element, 1804, coined in Modern Latin by its discoverer, English chemist Smithson Tennant (1761-1815) from Greek iris (genitive iridos) "rainbow" (see iris) + chemical ending -ium. So called "from the striking variety of colours which it gives while dissolving in marine acid" [Tennant]
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