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rhenium
[ ree-nee-uhm ]
noun
, Chemistry.
- a rare metallic element of the manganese subgroup: used, because of its high melting point, in platinum-rhenium thermocouples. : Re; : 75; : 186.2.
rhenium
/ ˈriːnɪəm /
noun
- a dense silvery-white metallic element that has a high melting point. It occurs principally in gadolinite and molybdenite and is used, alloyed with tungsten or molybdenum, in high-temperature thermocouples. Symbol: Re; atomic no: 75; atomic wt: 186.207; valency: –1 or 1–7; relative density: 21.02; melting pt: 3186°C; boiling pt: 5596°C (est)
rhenium
/ rē′nē-əm /
- A very rare, dense, silvery-white metallic element with a very high melting point. It is used to make catalysts and electrical contacts. Atomic number 75; atomic weight 186.2; melting point 3,180°C; boiling point 5,627°C; specific gravity 21.02; valence 1, 2, 3, 4, 5, 6, 7.
- See Periodic Table
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Word History and Origins
Discover More
Word History and Origins
Origin of rhenium1
C19: New Latin, from Rhēnus the Rhine
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