- rare-earth oxides
- Engineering: REO
Универсальный русско-английский словарь. Академик.ру. 2011.
rare-earth oxides
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Rare earth element — Rare earth ore, shown with a United States penny for size comparison These rare … Wikipedia
rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 … Universalium
rare earth — n. 1. any of certain basic oxides much alike in physical and chemical properties; specif., any of the oxides of the rare earth elements 2. any of the rare earth elements … English World dictionary
rare earth — rer ərth n 1) any of a group of similar oxides of metals or a mixture of such oxides occurring together in widely distributed but relatively scarce minerals 2) RARE EARTH ELEMENT … Medical dictionary
rare earth element — n any of a series of metallic elements of which the oxides are classed as rare earths and which include the elements of the lanthanide series and sometimes yttrium and scandium called also rare earth metal … Medical dictionary
rare earth — noun any element of the lanthanide series (atomic numbers 57 through 71) (Freq. 1) • Syn: ↑rare earth element, ↑lanthanoid, ↑lanthanide, ↑lanthanon • Hypernyms: ↑group, ↑grouping … Useful english dictionary
rare earth — noun Date: 1875 1. any of a group of similar oxides of metals or a mixture of such oxides occurring together in widely distributed but relatively scarce minerals 2. rare earth element … New Collegiate Dictionary
rare earth element — noun Date: 1924 any of a series of metallic elements of which the oxides are classed as rare earths and which include the elements of the lanthanide series and sometimes yttrium and scandium called also rare earth metal … New Collegiate Dictionary
Mountain Pass rare earth mine — The Mountain Pass mine surface facilities. The upper part of the open pit is seen in the background. Location … Wikipedia
rare earth metal — Any of a large class of chemical elements including scandium (atomic number 21), yttrium (39), and the 15 elements from 57 (lanthanum) to 71 (see lanthanides). The rare earths themselves are pure or mixed oxides of these metals, originally… … Universalium
rare earth — noun naturally occurring oxides of the lanthanide metals; they are widely distributed in relatively small concentrations and are used in glassmaking, ceramic glazes etc … Wiktionary
