expansion slot

noun

A slot for additional hardware, cards, etc. for the purpose of expanding a computer system.

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Meanings

nounexpansion slot (plural expansion slots)

plural expansion slots

  1. computingA slot for additional hardware, cards, etc. for the purpose of expanding a computer system.

    Fitting any of the joysticks to a Spectrum proved tedious. For starters I tried the Spectrum ZX Interface 2, a 5in-by-3in. chunk of plastic containing a single chip. It fits into the Spectrum expansion slot in a way that tempts wobble.

    1984, Practical Computing, volume 7, page 93

Synonyms & antonyms

noun(computer) a socket in a microcomputer that will accept a plug-in circuit board

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Synonym sets from Open English WordNet, CC BY 4.0.

Cite this entry
APA

expansion slot. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/expansion%20slot

MLA

“expansion slot.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/expansion%20slot. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “expansion slot,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/expansion%20slot.

Source: expansion slot on Wiktionary, CC BY-SA 4.0.