RUBIDIUMS
Noun
rubidiums
plural of rubidium
Source: Wiktionary
RUBIDIUM
Ru*bid"i*um, n. Etym: [NL., fr. L. rubidus red, fr. rubere to be red. So called from two dark red spectroscopic lines by means of which it was discovered in the lepidolite from Rozena, Moravia. See Rubicund.] (Chem.)
Definition: A rare metallic element. It occurs quite widely, but in small quantities, and always combined. It is isolated as a soft yellowish white metal, analogous to potassium in most of its properties. Symbol Rb. Atomic weight, 85.2.
Source: Webster’s Unabridged Dictionary 1913 Edition
Word of the Day
19 April 2025
CATCH
(verb) grasp with the mind or develop an understanding of; “did you catch that allusion?”; “We caught something of his theory in the lecture”; “don’t catch your meaning”; “did you get it?”; “She didn’t get the joke”; “I just don’t get him”
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