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hypereutectoid

or hy·per·eu·tec·tic

[hahy-per-yoo-tek-toid]
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adjective Metallurgy.
  1. (of an alloy) having more of the alloying element than the eutectoid composition.
  2. (of steel) having more carbon than the 0.8 percent of eutectoid steel.

Origin of hypereutectoid

First recorded in 1910–15; hyper- + eutectoid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for hypereutectic

hypereutectic

hypereutectoid

adjective
  1. (of a mixture or alloy with two components) containing more of the minor component than a eutectic mixtureCompare hypoeutectic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012