Medicine/Medical. to shake (a patient) in order to determine if a fluid is present in the thorax or elsewhere.
Origin: 1860–65; < L succussus (ptp. of succutere to toss up), equiv. to suc-suc-+ -cut(ere), comb. form of quatere to shake + -tus ptp. suffix, with tt > ss
[suh-kuhs] 
