definition of
trough

[1] #1 trough n. a narrow depression (as in the earth or between ocean waves or in the ocean bed). wn

[2] #2 trough n. [gutter] a channel along the eaves or on the roof; collects and carries away rainwater. wn

[3] #3 trough n. [bowl] a concave shape with an open top. wn

[4] #4 trough n. [public treasury, till] a treasury for government funds. wn

[5] #5 trough n. a long narrow shallow receptacle. wn