🔍 牛津詞典
🔍 朗文詞典
🔍 劍橋詞典
🔍 柯林斯詞典
🔍 麥美倫詞典
🔍 韋氏詞典 🎯

檢索以下詞典:
(Mr. Ng 不推薦使用 Google 翻譯!)
最近搜尋:

roentgenium

noun

roent·​gen·​i·​um rent-ˈge-nē-əm How to pronounce roentgenium (audio)
rənt-,
-ˈje-
: a short-lived radioactive element produced artificially see Chemical Elements Table

Word History

Etymology

New Latin; from the fact that the element was synthesized on the centennial of Röntgen's discovery of X-rays

First Known Use

2004, in the meaning defined above

Time Traveler
The first known use of roentgenium was in 2004

👨🏻‍🏫 Mr. Ng 韋氏詞典 📚 – mw.mister5️⃣.net
切換為繁體中文
Site Uptime