Meanings
nounexpansion card (plural expansion cards)
plural expansion cards
- computingA circuit board that connects to the motherboard of a computer in order to allow additional capabilities.
Synonyms: expansion board, adapter card, peripheral card, accessory card
Synonyms & antonyms
nounA circuit board that connects to the motherboard of a computer in order to allow additional capabilities.
Similar
expansion boardadapter cardperipheral cardaccessory card
Also see
Translations
Catalan targeta d'expansió
- targeta d'expansióTranslations
French carte d’extension
- carte d’extensionTranslations
German Peripherie-Karten
- Peripherie-KartenTranslations
Spanish tarjeta de expansión
- tarjeta de expansiónTranslations
Cite this entry
APA
expansion card. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/expansion%20card
MLA
“expansion card.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/expansion%20card. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “expansion card,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/expansion%20card.
Source: expansion card on Wiktionary, CC BY-SA 4.0.