workupPronunciation: /ˈwəːkʌp/Definition of workup noun 1chiefly US a diagnostic examination of a patient:a full neurological workup Chemistry a series of experimental procedures carried out to separate and purify substances for analysis. 2(in a military context) a period of training or preparation, typically for a specific operation:the first Harrier squadron began its workupworkup in other Oxford dictionaries Definition of workup in the US English dictionary