Definition of vanadium noun from the Oxford Advanced American Dictionary

 

vanadium

 noun
noun
NAmE//vəˈneɪdiəm//
 
[uncountable](symbol V)
 
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a chemical element. Vanadium is a soft, poisonous, silver-gray metal that is added to some types of steel to make it stronger.
See the Oxford Advanced Learner's Dictionary entry: vanadium