1808, coined in Modern Latin by its discoverer, English chemist Sir Humphrey Davy (1778-1829), because it was present in the mineral barytes "heavy spar" (barium sulphate), so named by Lavoisier from Greek barys "heavy," from PIE root *gwere- (2) "heavy" (see grave (adj.)). The metal is actually relatively light.
例文
1. Explain why barium forms peroxide but berylium does not.
バリウムが過酸化物を形成でき、ベリリウムができない理由を説明する。
2.Common ceramic elements are barium titanate and lead zirconate-titanate.
通常のセラミック素子は、それぞれチタン酸バリウムとジルコニウムチタン酸鉛である。
3.There is reflux of barium into the terminal ileum.
バリウム剤は回腸末端に逆流する。
4. Barium is found in some oilfield brines in concentrations greater than 100 mg/litre.
一部の油田ハロゲン水では、バリウムの濃度は100 mg/リットルより大きい。
5.Diagnosis can usually be made by barium swallow and tracheogram.