Search Result for "rb": 
Wordnet 3.0

NOUN (1)

1. a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite;
[syn: rubidium, Rb, atomic number 37]

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1 definitions retrieved:

WordNet (r) 3.0 (2006):

Rb n 1: a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite [syn: rubidium, Rb, atomic number 37]