Rhenium

n. (Chemistry) uncommon heavy metallic chemical element, symbol Re

Rhenium (IPA: ) is a chemical element in the periodic table that has the symbol Re and atomic number 75. A silvery-white, rare, heavy, polyvalent transition metal, rhenium resembles manganese chemically and is used in some alloys. Rhenium is obtained as a by-product of molybdenum refinement and rhenium-molybdenum alloys are superconducting. This was the last naturally-occurring element to be discovered and belongs to the ten most expensive metals on Earth (over US$ 7500.-/kg).
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Noun
1. a rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum
(synonym) Re, atomic number 75
(hypernym) metallic element, metal

n. rhenium

n. rhenium