boron carbide


Definition of boron carbide

: a refractory shiny black crystalline compound B4C that is one of the hardest known materials and is used especially in abrasives and as a structural reinforcing material

Examples of boron carbide in a Sentence

Recent Examples on the Web The counter is to make armor harder, by adding ultra-hard ceramic plates made out of materials like boron carbide. David Hambling, Popular Mechanics, 19 Sep. 2022 The addition of silicon to boron carbide armor reduces the phase transformation by some 30 percent. Kyle Mizokami, Popular Mechanics, 29 Jan. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'boron carbide.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of boron carbide

1891, in the meaning defined above

Learn More About boron carbide

Time Traveler for boron carbide

Time Traveler

The first known use of boron carbide was in 1891

See more words from the same year

Dictionary Entries Near boron carbide


boron carbide


See More Nearby Entries 

Statistics for boron carbide

Last Updated

27 Sep 2022

Cite this Entry

“Boron carbide.” Dictionary, Merriam-Webster, Accessed 29 Sep. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on boron carbide Encyclopedia article about boron carbide


Test Your Vocabulary

Odd Habits and Quirks

  • image1926873504
  • Which of the following best describes an easily irritated person?
True or False

Test your knowledge - and maybe learn something along the way.

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!