niobium(redirected from coltan)
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a chemical element, atomic number 1, atomic weight 92.906. (See Appendix 6.)
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
A rare metallic element, atomic no. 41, atomic wt. 92.90638, usually found with tantalum.
[Niobe, daughter of Tantalus]
Farlex Partner Medical Dictionary © Farlex 2012
A rare metallic element; atomic no. 41, atomic wt. 92.90638; usually found with tantalum.
[Niobe, daughter of Tantalus in Greek mythology]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012