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pyrophoric alloy[¦pī·rə¦fȯr·ik ′al‚ȯi]
An alloy such as ferrocerium that produces a spark when struck with metal (steel) at an angle; used for automatic cigarette lighters.
An alloy in powder form that spontaneously oxidizes in air, reaching high temperatures.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.