yttrium
[ ih-tree-uh m ]
/ ˈɪ tri əm /
noun Chemistry.
a rare trivalent metallic element, found in gadolinite and other minerals. Symbol: Y; atomic weight: 88.905; atomic number: 39; specific gravity: 4.47.
Compare
rare-earth element.
OTHER WORDS FROM yttrium
yt·tric, adjectiveWords nearby yttrium
ytterbite,
ytterbium,
ytterbium oxide,
yttria,
yttriferous,
yttrium,
yttrium metal,
yttrium oxide,
yttrotantalite,
yu,
yu-wei
Example sentences from the Web for yttrium
British Dictionary definitions for yttrium
yttrium
/ (ˈɪtrɪəm) /
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 of yttrium
yttric, adjectiveWord Origin for yttrium
C19: New Latin; see
ytterbia
Medical definitions for yttrium
yttrium
[ ĭt′rē-əm ]
n. Symbol Y
A silvery, ductile, rare-earth element used in various alloys. Atomic number 39.
Scientific definitions for yttrium
yttrium
[ ĭt′rē-əm ]
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.