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Y
(redirected from yttrium)

   Also found in: Dictionary/thesaurus, Medical, Financial, Encyclopedia, Wikipedia 0.01 sec.
AcronymDefinition
YYear
YYes
YYMCA or YWCA (Young Men's Christian Association or Young Women's Christian Association)
YWhy?
YYahoo! (Internet search engine)
YYellow
YCorporation (IRB)
YIncome (economics)
YEconomy (class airfare)
YBusiness Class (Air Freight; also see C, Economy Class)
YYard
YYankee (aviation letter code)
YYen (Japanese currency)
YYukon Territory (postal code designation, Canada)
YY Chromosome
YBundeswehr (German Armed Forces; number plate)
YTyrosine (amino acid)
YYaw
YYttrium
YYeoman
YLuminance (signal)
YYotta- (prefix, 10^24 or septillion)
yYocto (prefix for one septillionth, 10^ -24)
YMale Chromosome
YYukon Standard Time
Ysearch and rescue unit (SRU) error (US DoD)
YUS DoT tire speed rating (188 mph)
YVertical axis in Cartesian coordinate system
YNavigational error of search craft
YPrototype Aircraft Designation


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China supplies at least 95 per cent of the world's rare earths - 17 chemical elements with hard-to-pronounce names such as praseo-dymium and yttrium - essential for a wide range of high-tech devices and green technologies.
The experiments showed that yttrium in trace amounts - less than 1 microgram per milliliter of water - may disrupt normal calcium signalling in neurons and other electrically active cells, an amount far lower than what had been thought to be safe levels.
“More significantly for Ucore, Beijing has stipulated that the heavy rare earths (HREE's) dysprosium, terbium, thulium, lutetium and yttrium will not just be cut back, but will be fully prohibited from export under the new REE Plan,” says the company.
 
 
 
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