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Rb
Symbol, Chemistry.
- rubidium.
RB-
1abbreviation for
- reconnaissance bomber
RB-57
Rb
2the chemical symbol for
- rubidium
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Example Sentences
The figure will be high but we could lend our time and sign a nondisclosure agreement with R.B. fine art.
From The Daily Beast
God grant that, and all else good for you, dear friend, and so for R.B.
From Project Gutenberg
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