A disappointment or anticlimax.
The clearance of an aircraft to descend through clouds to clear air below, or the process of granting such a clearance.
The neurohormonal release of milk in dairy cows or in breastfeeding human mothers.
Great sadness or depression, especially of a thoughtful or introspective nature.
Black bile, formerly thought to be one of the four "cardinal humours" of animal bodies.
Affected with great sadness or depression.