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rhenium
[ ree-nee-uhm ]
/ ˈri ni əm /
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noun Chemistry.
a rare metallic element of the manganese subgroup: used, because of its high melting point, in platinum-rhenium thermocouples. Symbol: Re; atomic number: 75; atomic weight: 186.2.
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Words nearby rhenium
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use rhenium in a sentence
In 2007, scientists examining sulfur, molybdenum, and rhenium announced that they’d found evidence of oxygen in this sample—from well before the GOE.
Ancient rocks hold the story of Earth’s first breath of oxygen|Rahul Rao|January 10, 2022|Popular-Science
British Dictionary definitions for rhenium
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)
Word Origin for rhenium
C19: New Latin, from Rhēnus the Rhine
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Medical definitions for rhenium
rhenium
[ rē′nē-əm ]
n. Symbol Re
A rare dense metallic element with a high melting point, used in plating medical instruments. Atomic number 75.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for rhenium
rhenium
[ rē′nē-əm ]
Re
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.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.