| REE | rapid extinction effect; rare earth element; resting energy expenditure |
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| NRBC | National Rare Blood Club; normal red blood cell; nucleated red blood cell |
| RARE | rapid acquisition with relaxation enhancement |
| Nutcracker syndrome | the vein from the left kidney is obstructed by one of the major arteries leaving the aorta. It can c... |
| REE | Rare Earth Elements |
|---|---|
| LEO | Low Earth Orbit |
| RARE | RA response element |
| RARE | RA responsive element |
| RARE | Rapid Acquisition Relaxation Enhanced |
| metals, rare earth | Elements of group IIIb of the periodic table from lanthanum, atomic number 57, to and including lutetium, atomic number 71. (12 Dec 1998) |
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| rare earth elements | Those elements with atomic numbers 57-71 which closely resemble one another chemically and were once difficult to separate from one another. Synonym: rare earth elements. Origin: Lanthanum, first element of the series (05 Mar 2000) |
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| rare earth metal | Those elements with atomic numbers 57-71 which closely resemble one another chemically and were once difficult to separate from one another. Synonym: rare earth elements. Origin: Lanthanum, first element of the series (05 Mar 2000) |
| rare-earth screen | An intensifying screen made of a rare-earth oxide phosphor, more efficient than calcium tungstate, especially at the higher kilovoltages used in modern radiography. (05 Mar 2000) |
| metals, alkaline earth | Metals that constitute the group IIa in the periodic table. (12 Dec 1998) |
| rare | 1. Not frequent; seldom met with or occurring; unusual; as, a rare event. 2. Of an uncommon nature; unusually excellent; valuable to a degree seldom found. "Rare work, all filled with terror and delight." (Cowley) "Above the rest I judge one beauty rare." (Dryden) 3. Thinly scattered; dispersed. "Those rare and solitary, three in flocks." (Milton) 4. Characterised by wide separation of parts; of loose texture; not thick or dense; thin; as, a rare atmosphere at high elevations. "Water is nineteen times lighter, and by consequence nineteen times rarer, than gold." (Sir I. Newton) Synonym: Scarce, infrequent, unusual, uncommon, singular, extraordinary, incomparable. Rare, Scarce. We call a thing rare when but few examples, specimens, or instances of it are ever to be met with; as, a rare plant. We speak of a thing as scarce, which, though usually abundant, is for the time being to be had only in diminished quantities; as, a bad harvest makes corn scarce. "A perfect union of wit and judgment is one of the rarest things in the world." (Burke) "When any particular piece of money grew very scarce, it was often recoined by a succeeding emperor." (Addison) Origin: F, fr. L. Rarus thin, rare. Source: Websters Dictionary (01 Mar 1998) |
| rare earths | See: lanthanides. (05 Mar 2000) |
| rare species | A species of animal or plant that is considered rare, threatened, or endangered. (17 Dec 1997) |
| metals | Electropositive chemical elements characterised by ductility, malleability, luster, and conductance of heat and electricity. They can replace the hydrogen of an acid and form bases with hydroxyl radicals. (12 Dec 1998) |
| metals, actinoid | A series of radioactive elements from actinium, atomic number 89, to and including lawrencium, atomic number 103. They are the theoretical analogs of the rare earth metal series. (12 Dec 1998) |
| metals, alkali | Metals that constitute group ia in the periodic table. They are the most strongly electropositive of the metals. (12 Dec 1998) |
| metals, heavy | metals with high specific gravity, typically larger than 5. They have complex spectra, form coloured salts and double salts, have a low electrode potential, are mainly amphoteric, yield weak bases and weak acids, and are oxidizing or reducing agents (12 Dec 1998) |
| metals, light | Metals with low specific gravity, typically smaller than 5, characterised by a single valence (1, 2, or 3), a simple spectrum, strong electromotive force (positive), and colourless compounds. (12 Dec 1998) |
| alkali earth metal | See: alkaline earth elements. (05 Mar 2000) |
| alkaline earth | <chemistry> Any of the metallic elements found in the second column of the periodic table, such as calcium and magnesium. (09 Oct 1997) |
| alkaline earth elements | Those element's in the family Be, Mg, Ca, Sr, Ba, and Ra, the hydroxides of which are highly ionised and hence alkaline in water solution. (05 Mar 2000) |
Synonyms : Earth Metals, Rare
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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