Oxford Dictionary English expansion card nounnoun BrE BrE//ɪkˈspænʃn kɑːd// ; NAmE NAmE//ɪkˈspænʃn kɑːrd// (also add-in) (computing) Computer hardware Add to my wordlistjump to other results a circuit board that can be put into a computer to give it more memory or make it able to do more things See related entries: Computer hardwareSee expansion card in the Oxford Advanced American DictionaryCheck pronunciation: expansion card oxfordlearnersdictionaries.com
