Dictionary
chro•mi•um
Pronunciation: (krō'mē-um), [key]—
n.
1. a lustrous, hard, brittle, metallic element used in alloy steels for hardness and corrosion resistance, as in stainless steel, and for plating other metals: chromium salts are used as pigments and mordants.
Symbol: Cr;
at. wt.: 51.996;
at. no.: 24;
sp. gr.: 7.1.
2. chrome (def. 2).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.