Kovar definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
an alloy that consists mostly of iron, nickel, and cobalt, and has the same heat expansion properties as heat-resistant glass: it is usually fused to glass to form a gas seal
kovar - Computer Definition
An inert metal alloy that does not oxidize.