yttrium

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yt·tri·um

(ĭt′rē-əm)

n. Symbol Y

A silvery, malleable metallic element that is found in the same ores as other rare-earth elements and is used in various metallurgical applications, notably to increase the strength of magnesium and aluminum alloys. Its oxide and other compounds are useful as phosphors, microwave filters, laser dopants, and superconducting materials. Atomic number 39; atomic weight 88.906; melting point 1,522°C; boiling point 3,345°C; specific gravity 4.469 (at 25°C); valence 3. See Periodic Table.

[From yttria.]

yt′tric (ĭt′rĭk) adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

yttrium

(ˈɪtrɪəm)

(Elements & Compounds) 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

[C19: New Latin; see ytterbia]

ˈyttric adj

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

yt•tri•um

(ˈɪ tri əm)

n.

a rare metallic element, found in gadolinite and other minerals. Symbol: Y; at. wt.: 88.905; at. no.: 39; sp. gr.: 4.47.

[1815–25; yttri(a) + -ium²]

yt′tric, adj.

yt·tri·um

(ĭt′rē-əm)

Symbol Y A silvery, easily shaped metallic element that is 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. See Periodic Table.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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Noun

yttrium - a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys

atomic number 39, Y

metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.

fergusonite - a dark mineral consisting of oxides of yttrium and erbium and tantalum and other minerals

gadolinite, ytterbite - a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium

xenotime - a brown-to-yellow mineral that is a phosphate of yttrium in crystalline form

itrio

yttrium

[ˈɪtrɪəm] N → itrio m

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

References in periodicals archive ?

Samples with elevated niobium and rare earth values lie next to the Kennecott 1955 trench sites where carbonatite hosted cerium, lanthanum, niobium, neodymium, praseodymium and Yttrium values occur over a strike length of 700 meters.

American Manganese encouraged by rock sampling results at Lonnie project, BC

Meanwhile, the most abundant are cerium, lanthanum, neodymium and yttrium, all of which have about the same abundance such as more common industrial metals, such as chromium, lead, molybdenum, nickel, tin, tungsten and zinc.

What are rare earths and how important are they?

In this scenario it was found that the order of leaching efficiency (from most to least) was sulfuric acid, bio lixiviant, gluconic acid, and then phosphoric acid for all REE except yttrium. Yttrium was almost equally leached by all four lixiviants.

Scientists to end China's hegemony on Rare Earth Elements production

The management options for PCO include Neodymium: Yttrium Aluminum Garnet (Nd:YAG) laser capsulotomy and parsplana surgical capsulotomy6.

BRIMONIDINE EFFICACY ON INTRAOCULAR PRESSURE CONTROL FOLLOWING ND: YAG LASER CAPSULOTOMY

Researchers defined a 400 sq km stretch of seabed that they estimate contains 16 million tonnes of rare-earth oxides, including enough yttrium to cater 780 years of domestic demand, 620 years worth of europium, 420 years of terbium and 730 years of dysprosium.

Discovery of rare-earth minerals off Japan coast

On histologic examination, black, spherical foreign bodies consistent with yttrium microspheres were visualized, documenting radiation-induced gastric ulceration.

A Woman with Black Beads in Her Stomach: Severe Gastric Ulceration Caused by Yttrium-90 Radioembolization

A graduate student studying environmental engineering, Taggart wrote about coal fly ash as a potential source for strategic rare earth metals and yttrium, which are critical to the automobile, energy, electronics, and defense industries.

American Coal Ash Association Educational Foundation

Yafis Barlas, a theoretical physicist at the University of California, Riverside, and colleagues wondered whether the magnetic compound yttrium iron garnet placed close to graphene would share its magnetism while leaving the carbon sheet's structure and electronic properties intact.

Graphene's allure can be magnetic: proximity allows carbon sheet to borrow a material's power

A sale was agreed to Yttrium Ltd, which has now completed a purchase of all the properties.

City student digs sold in PS6m deal

In the research, efforts have been made to increase thermal stability of the silicate ceramic membrane as well as preserving its nanoporous structure by adding yttrium oxide to change the structure of the membrane.

Nanotechnology used to produce ceramic membrane

In this research, efforts have been made to increase thermal stability of the silicate ceramic membrane as well as preserving its nanoporous structure by adding yttrium oxide to change the structure of the membrane.

Nanotechnology Used to Produce Ceramic Membrane with High Thermal Stability

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