Oxford Dictionary English supercomputer noun noun BrE BrE//ˈsuːpəkəmpjuːtə(r)// , BrE//ˈsjuːpəkəmpjuːtə(r)// ; NAmE NAmE//ˈsuːpərkəmpjuːtər// Add to my wordlistjump to other results a powerful computer with a large amount of memory and a very fast central processing unitSee supercomputer in the Oxford Advanced American DictionaryCheck pronunciation: supercomputer oxfordlearnersdictionaries.com