Rubidium
Chamber's Twientieth Century Dictionary · 1908 · p. 91
rōō-bid′i-um, n. a soft silvery-white metallic element. [L. rubidus , red.]
Bu kavram başka kaynaklarda da geçiyor
A Dictionary of Scientific Terms (1927)
Adair's New Encyclopedia (1923)
The American Illustrated Medical Dictionary (1913)
An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
An Illustrated Encyclopedic Medical Dictionary (1894)
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