Definition of black bile
: a humor of medieval physiology believed to be secreted by the kidneys or spleen and to cause melancholy
First Known Use of black bile
Medical Definition of black bile
: the one of the four humors of ancient and medieval physiology that was believed to be secreted by the kidneys and spleen and to cause melancholy
Seen and Heard
What made you want to look up black bile? Please tell us where you read or heard it (including the quote, if possible).