lanthanum, La, atomic number
(noun) a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
Source: WordNet® 3.1
lanthanum (countable and uncountable, plural lanthanums)
(uncountable) A chemical element (symbol La) with an atomic number of 57: a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air.
(countable) An atom of this element.
Source: Wiktionary
Lan"tha*num, n. Etym: [NL., fr. Gr. (Chem.)
Definition: A rare element of the group of the earth metals, allied to aluminium. It occurs in certain rare minerals, as cerite, gadolinite, orthite, etc., and was so named from the difficulty of separating it from cerium, didymium, and other rare elements with which it is usually associated. Atomic weight 138.5. Symbol La. [Formerly written also lanthanium.]
Source: Webster’s Unabridged Dictionary 1913 Edition
20 April 2025
(noun) food mixtures either arranged on a plate or tossed and served with a moist dressing; usually consisting of or including greens
Coffee is a brewed drink prepared from roasted coffee beans, the seeds of berries from certain Coffea species. When coffee berries turn from green to bright red – indicating ripeness – they are picked, processed, and dried. Dried coffee seeds are roasted to varying degrees, depending on the desired flavor.
