Definition of expansion card in English:

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expansion card

(also expansion board)

noun

Computing
A circuit board that can be inserted in a computer to give extra facilities or memory.
Example sentences
  • With almost everything I need integrated on the motherboard, the only expansion card I have in my PC is the graphics card.
  • The terminals are used for electrically connecting the elongated expansion card with a printed circuit board on which the card connector is mounted.
  • If you have ever added an expansion card to your computer, you are almost half-way to building your own system.

For editors and proofreaders

Syllabification: ex·pan·sion card

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