One of the four humors of ancient and medieval physiology, thought to cause anger and bad temper when present in excess; yellow bile.
Obsolete The quality and condition of being bilious.
[Middle English colre, from Old French, from Latin cholera, cholera, jaundice, from Greek kholera, from kholē, bile; see ghel-2 in Indo-European roots.]
[kol-er] 
ər