• synonyms


  1. a microconstituent of hardened and tempered steel, consisting of a very fine aggregate of ferrite and cementite.
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Origin of troostite

1900–05; named after L. J. Troost (died 1911), French chemist; see -ite1
Related formstroost·it·ic [troo-stit-ik] /truˈstɪt ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for troostite


  1. a reddish or greyish mineral that is a variety of willemite in which some of the zinc is replaced by manganese
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Word Origin

C19: named after Gerard Troost (died 1850), US geologist
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