yttrium

[ i-tree-uhm ]

nounChemistry.
  1. a rare trivalent metallic element, found in gadolinite and other minerals. Symbol: Y; atomic weight: 88.905; atomic number: 39; specific gravity: 4.47.

Origin of yttrium

1
1815–25; <New Latin, named after Ytterby.See ytterbia, -ium

Other words from yttrium

  • yttric, adjective

Words Nearby yttrium

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use yttrium in a sentence

  • 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.

    Occult Chemistry | Annie Besant and Charles W. Leadbeater
  • One funnel of yttrium contains exactly the same number of atoms as is contained in a gaseous atom of nitrogen.

    Occult Chemistry | Annie Besant and Charles W. Leadbeater
  • Nitrogen has nothing new to show us, all its constituents having appeared in scandium and yttrium.

    Occult Chemistry | Annie Besant and Charles W. Leadbeater
  • In yttrium, on the proto level, a 110 and b 63 both escape from the funnel, and behave as in scandium.

    Occult Chemistry | Annie Besant and Charles W. Leadbeater

British Dictionary definitions for yttrium

yttrium

/ (ˈɪtrɪəm) /


noun
  1. 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

Origin of yttrium

1
C19: New Latin; see ytterbia

Derived forms of yttrium

  • yttric, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for yttrium

yttrium

[ ĭtrē-əm ]


Y
  1. 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.

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