yttrium, atomic number
(noun) a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys
Source: WordNet® 3.1
yttrium (usually uncountable, plural yttriums)
A silvery metallic chemical element (symbol Y) with an atomic number of 39, mainly found in combination with lanthanide elements in rare-earth minerals.
Source: Wiktionary
Yt"tri*um, n. Etym: [NL., from Ytterby, in Sweden. See Erbium.] (Chem.)
Definition: A rare metallic element of the boron-aluminium group, found in gadolinite and other rare minerals, and extracted as a dark gray powder. Symbol Y. Atomic weight, 89. [Written also ittrium.]
Note: Associated with yttrium are certain rare elements, as erbium, ytterbium, samarium, etc., which are separated in a pure state with great difficulty. They are studied by means of their spark or phosphorescent spectra. Yttrium is now regarded as probably not a simple element, but as a mixture of several substances.
Source: Webster’s Unabridged Dictionary 1913 Edition
8 May 2025
(noun) the act of protecting something by surrounding it with material that reduces or prevents the transmission of sound or heat or electricity
According to Guinness World Records, the largest iced coffee is 14,228.1 liters and was created by Caffé Bene (South Korea), in Yangju, South Korea, on 17 July 2014. They poured iced black Americano on the giant cup that measured 3.3 meters tall and 2.62 meters wide.
