EXAMPLES | WORD ORIGIN noun . Chemistry a rare trivalent metallic element, found in gadolinite and other minerals. : Y; Symbol : 88.905; atomic weight : 39; atomic number : 4.47. specific gravity Origin of yttrium 1815–25;
-ium Related forms yt·tric, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for yttrium Historical Examples of yttrium
A rare metal found by Prof. Mosander, associated with erbium and
yttrium in ordinary yttria. Yttrium was obtained by Whler in 1828, as a brittle, dark-grey metal, made from the chloride by the action of sodium.
Erbium, a rare metal found along with
yttrium, terbium, and other rare elements in some rare minerals.
Its group members, scandium and
yttrium, have the same form; we have not examined the fourth; the group is positive.
One funnel of
yttrium contains exactly the same number of atoms as is contained in a gaseous atom of nitrogen. British Dictionary definitions for yttrium noun a silvery metallic element occurring in monazite and gadolinite and used in various alloys, in lasers, and as a catalyst. Symbol: Y; atomic no: 39; atomic wt: 88.90585; valency: 3; relative density: 4.469; melting pt: 1522°C; boiling pt: 3338°C Derived Forms yttric, adjective Word Origin for yttrium
C19: New Latin; see
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for yttrium
metallic rare-earth element, 1866, coined in Modern Latin by Swedish chemist Carl Gustaf Mosander (1797-1858) from
Ytterby, name of a town in Sweden where mineral containing it was found.
Online Etymology Dictionary, © 2010 Douglas Harper
n. Symbol Y A silvery, ductile, rare-earth element used in various alloys. Atomic number 39.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Y A silvery metallic element found in the same ores as elements of the lanthanide series. Yttrium is used to strengthen magnesium and aluminum alloys, to provide the red color in color televisions, and as a component of various optical and electronic devices. Atomic number 39; atomic weight 88.906; melting point 1,522°C; boiling point 3,338°C; specific gravity 4.45 (25°C); valence 3. See Periodic Table.
The American Heritage® Science Dictionary
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