rare earth definitions

RARE EARTH | meaning in the Cambridge English Dictionary

rare earth definition: one of a group of metal chemical elements that are difficult to find in large quantities, and are…. Learn more.

What does rare earth mean? - definitions

Definition of rare earth in the Definitions.net dictionary. Meaning of rare earth. What does rare earth mean? Information and translations of rare earth in the most comprehensive dictionary definitions resource on the web.

Rare earth elements - definition of Rare earth elements by ...

Rare earth elements synonyms, Rare earth elements pronunciation, Rare earth elements translation, English dictionary definition of Rare earth elements. n. 1. Any of various oxides of the rare-earth elements. 2. A rare-earth element. American Heritage® Dictionary of the English Language, Fifth Edition....

Rare earth - definition of rare earth by The Free Dictionary

Define rare earth. rare earth synonyms, rare earth pronunciation, rare earth translation, English dictionary definition of rare earth. n. 1. Any of various oxides of the rare-earth elements. 2. A rare-earth element. American Heritage® Dictionary of the English Language, Fifth Edition....

Rare-earth element - definition of rare-earth element by ...

rare-earth element (râr′ûrth′) n. Any of a group of 17 naturally occurring metallic elements that have similar properties, consisting of scandium, yttrium, and the 15 elements with atomic numbers 57 through 71 (the lanthanides). The rare-earth elements are widely used in electronics and other high-tech products. [rare earth.] American Heritage ...

RARE EARTH ELEMENTS - periodni.com

Sep 19, 2012· The rare earth elements are often described as being a 'light-group rare earth element' (LREE) or 'heavy-group rare earth element' (HREE). The definition of a LREE and HREE is based on the electron configuration of each rare-earth element. The LREE are defined as lanthanum, atomic number 57 through gadolinium, atomic number 64.

Rare Earth Materials Purity Definition - ALB Materials Inc

Mar 17, 2016· Rare Earth Materials Purity Definition, REM, REO, TREM, TREO.

Rare earth element legal definition of Rare earth element

Rare earth elements are used to manufacture wind turbines and in the production of electronics, such as computers, cell phones, silicon chips, TV and computer monitors, rechargeable batteries, camera lenses, light emitting diodes (LEDs), compact fluorescent lamps, baggage scanners and marine propulsion systems.

Rare Earth | Free Online Dictionary of Law Terms and Legal ...

This entry about Rare Earth has been published under the terms of the Creative Commons Attribution 3.0 (CC BY 3.0) licence, which permits unrestricted use and reproduction, provided the author or authors of the Rare Earth entry and the Encyclopedia of Law are in each case credited as the source of the Rare Earth entry.

Rare-Earth Elements - USGS

Rare-Earth Elements Chapter O of Critical Mineral Resources of the United States—Economic and Environmental Geology and Prospects for Future Supply U.S. Department of the Interior U.S. Geological Survey Professional Paper 1802–O. 1A 8A …

What are 'rare earths' used for? - BBC News

Mar 13, 2012· Rare earth elements are chemically similar and are sometimes used in similar ways. "Rare earths" are a group of 17 chemically similar elements crucial to the manufacture of many hi-tech products ...

Rare - definition of rare by The Free Dictionary

Define rare. rare synonyms, rare pronunciation, rare translation, English dictionary definition of rare. adj. rar·er, rar·est 1. Infrequently occurring; uncommon: a rare event; a …

Rare Earths Oxide Definition | Law Insider

Continued improvement in the performance of the Mt. Weld and LAMP production facilities with increased throughput at lower costs, increased focus on qualityperformance and improved Rare Earths Oxide ( REO) recovery rates at all stages of the process.. Total Proven and Probable Ore Reserves have increased to 16.7Mt at 0.95% Total Rare Earths Oxide (TREO) including …

RARE EARTH | definition in the Cambridge English Dictionary

rare earth meaning: one of a group of metal chemical elements that are difficult to find in large quantities, and are…. Learn more.

Rare earths | definition of Rare earths by Medical dictionary

rare earth element. One of a series of metallic elements that follow lanthanum (at. no. 57) in the periodic table of elements and that have oxides with similar properties. The series comprises the 14-element lanthanide series (at. nos. 58-71 and includes praseodymium, promethium, and ytterbium. See also: element.

Rare earth definition and meaning | Collins English Dictionary

Rare earth definition: any oxide of a lanthanide | Meaning, pronunciation, translations and examples

What does rare earth mineral mean? - definitions.net

Definition of rare earth mineral in the Definitions.net dictionary. Meaning of rare earth mineral. What does rare earth mineral mean? Information and translations of rare earth mineral in the most comprehensive dictionary definitions resource on the web.

Rare-earth Meaning | Best 6 Definitions of Rare-earth

What does rare-earth mean? Rare earth is any of the seventeen metallic chemical elements found in atomic numbers 21, 39 and 57 through 71, typicall...

Rare-earth | definition of Rare-earth by Medical dictionary

Rare-earth magnets are strong permanent magnets made from alloys of rare-earth elements. Global Rare Earth Magnet Market to Reach USD 10.6bn by 2026, Finds New Market Report Taiwan's rare earth mineral, called 'monazite,' contains more than 50 percent of rare-earth elements, according to Business Weekly.

Rare-earth-metals Meaning | Best 1 Definitions of Rare ...

What does rare-earth-metals mean? Plural form of rare earth metal. (noun)

Glossary – Hastings Technology Metals Limited

Rare Earths Elements (REE): The REEs are defined as the elements from lanthanum to lutetium (atomic numbers 57 to 71) and yttrium (atomic number 39). Rare Earths Oxides (REO): Oxides of the rare earths elements. Grades of rare earths oxides are commonly quoted as parts per million (ppm) or percent (%) of TREO where:-

Rare earth | definition of rare earth by Medical dictionary

rare earth: n metallic elements used in intensifying screens. Also refers to fast-exposure roentgen-ray screen film.

Rare | Definition of Rare by Merriam-Webster

Rare definition is - seldom occurring or found : uncommon. How to use rare in a sentence. Synonym Discussion of rare.

Rare earth metals - definition of Rare earth metals by The ...

Rare earth metals synonyms, Rare earth metals pronunciation, Rare earth metals translation, English dictionary definition of Rare earth metals. n. 1. Any of various oxides of the rare-earth elements. 2. A rare-earth element. American Heritage® Dictionary of the …

RARE EARTH | Pronunciation in English - Cambridge Dictionary

rare earth pronunciation. How to say rare earth. Listen to the audio pronunciation in English. Learn more.

Rare-earth screen | definition of rare-earth screen by ...

rare-earth screen: an intensifying screen (6) made of a rare-earth oxide phosphor, more efficient than calcium tungstate, especially at the higher kilovoltages used in modern radiography.

Rare Earths | Definition of Rare Earths by Merriam-Webster

Rare earth definition is - any of a group of similar oxides of metals or a mixture of such oxides occurring together in widely distributed but relatively scarce minerals.

Visualizing China's Dominance in Rare Earth Metals

Jan 13, 2021· Increasing rare earth mining outside of China has reduced China's global share of mining, down from 97.7% in 2010 to 62.9% in 2019. But mining is merely one piece of the puzzle. Ultimately, the large majority of rare earth refining, 80%, resides in China. Therefore, even rare earths mined overseas are sent to China for final processing.

GAO-16-161, RARE EARTH MATERIALS: Developing a ...

rare earths as critical over the last 5 years (see table). Rare Earth Materials (Rare Earths) Meeting Various Definitions of Critical by Office Rare earths Acquisition, Technology and Logistics 2012 Manufacturing and Industrial Base Policy (MIBP) a. 2013 Defense Logistics Agency-Strategic Materials 2011, 2013, 2015 . Scandium

RARE EARTH | Definition of RARE EARTH by Oxford Dictionary ...

Definition of rare earth in English: rare earth (also rare earth element, rare earth metal) Translate rare earth into Spanish. noun Chemistry . Any of a group of chemically similar metallic elements comprising the lanthanide series and (usually) scandium and yttrium. They are not especially rare, but they tend to occur together in nature and ...

Rare-earth-metal Meaning | Best 1 Definitions of Rare ...

Rare earth element. (noun) Dictionary Menu. Dictionary Thesaurus Examples Sentences Quotes ... Dictionary Meanings; Rare-earth-metal Rare-earth-metal meaning. Filters Rare earth element. noun. 0. 0. Advertisement Related articles ...

Rare earth Definition & Meaning | Dictionary.com

Rare earth definition, the oxide of any of the rare-earth elements contained in various minerals. See more.

Rare-earth element definition and meaning | Collins ...

Rare-earth element definition: any element of the lanthanide series | Meaning, pronunciation, translations and examples