cementite

noun
ce·ment·ite | \si-ˈmen-ˌtīt \

Definition of cementite 

: a hard brittle iron carbide Fe3C that occurs in steel, cast iron, and iron-carbon alloys

First Known Use of cementite

1888, in the meaning defined above

History and Etymology for cementite

cement entry 1

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The first known use of cementite was in 1888

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More Definitions for cementite

cementite

noun
ce·ment·ite | \si-ˈment-ˌīt \

Medical Definition of cementite 

: a hard brittle iron carbide Fe3C in steel, cast iron, and iron-carbon alloys

More from Merriam-Webster on cementite

Britannica.com: Encyclopedia article about cementite

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