Trough - Definition
trough
n 1: a narrow depression (as in the earth or between ocean waves
or in the ocean bed)
2: a channel along the eaves or on the roof; collects and
carries away rainwater [syn: gutter, trough]
3: a concave shape with an open top [syn: bowl, trough]
4: a treasury for government funds [syn: public treasury,
trough, till]
5: a long narrow shallow receptacle
6: a container (usually in a barn or stable) from which cattle
or horses feed [syn: manger, trough]