Medical Definition of Ducrey's bacillus
: a gram-negative bacillus of the genus Haemophilus (H. ducreyi) that is the causative agent of chancroid
Biographical Note for ducrey's bacillus
Ducrey \dü-ˈkrā\play ,
Augusto (1860–1940), Italian dermatologist. Ducrey published in 1889 an announcement of his discovery of the organism which causes chancroid and now bears his name.