Dictionary
rhe•ni•um
Pronunciation: (rē'nē-um), [key]—
n. Chem.
a rare metallic element of the manganese subgroup: used, because of its high melting point, in platinum-rhenium thermocouples.
Symbol: Re;
at. no.: 75;
at. wt.: 186.2.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.