lanthanum

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lanthanum

 (La) [lan´thah-num]
a chemical element, atomic number 57, atomic weight 138.91. (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.

lan·tha·num (La),

(lan'thă-nŭm),
A metallic element, atomic no. 57, atomic wt. 138.9055; first of the rare earth elements (lanthanides).
[G. lanthanō, to lie hidden]
Farlex Partner Medical Dictionary © Farlex 2012

lan·tha·num

(lan'thă-nŭm)
A metallic element, atomic no. 57, atomic wt. 138.9055; first of the rare earth elements (lanthanides).
[G. lanthanō, to lie hidden]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012