motherboard

noun

moth·​er·​board ˈmə-t͟hər-ˌbȯrd How to pronounce motherboard (audio)
: the main circuit board especially of a microcomputer

Examples of motherboard in a Sentence

Recent Examples on the Web
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If at all possible, users should hold off on installing new motherboard firmware updates until after the new certificates are replaced. Dan Goodin, ArsTechnica, 17 June 2026 Right now, Anbernic’s replacement store only offers motherboards for the RG 505 model. Jibin Joseph, PC Magazine, 15 June 2026 Clear skies American multinational technology company Intel showcases their motherboards during the artificial intelligence exhibition AI EXPO 2026 in Taipei, Taiwan, on March 25, 2026. Alex Harring, CNBC, 1 May 2026 That included a new mounting system, which allowed components to be placed closer together on the motherboard—alongside a new heat management system and shrunken 200MP camera sensor. Janhoi McGregor, Forbes.com, 25 Apr. 2026 See All Example Sentences for motherboard

Word History

First Known Use

1971, in the meaning defined above

Time Traveler
The first known use of motherboard was in 1971

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Cite this Entry

“Motherboard.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/motherboard. Accessed 23 Jun. 2026.

Kids Definition

motherboard

noun
moth·​er·​board ˈmət͟h-ər-ˌbō(ə)rd How to pronounce motherboard (audio)
-ˌbȯ(ə)rd
: the main circuit board especially of a personal computer

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