Ste·vens-John·son syndrome 
(st
ēv
ənz-j
ŏn
s
ən)
n. A severe inflammatory eruption of the skin and mucous membranes, usually occurring after an infection, with malignancy, or as an allergic reaction to drugs or other substances.
[After Albert Mason Stevens (1884-1945) and Frank Chambliss Johnson (1894-1934), American pediatricians.]