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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First, each phone is processed down to the motherboard alone, the part that holds the core computing functionality. New Atlas, 2 July 2026 In its skull is a squarish motherboard, roughly the size of a slice of bread and studded with white capacitors that look like teeth. Stephen Witt, New Yorker, 29 June 2026 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 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 3 Jul. 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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