What is another word for troughs?
Pronunciation: [tɹˈɒfz] (IPA) 
Troughs, also known as channels, gutters or depressions, are often used to carry or collect water and other liquids. These grooves may be found in a variety of settings, including agriculture, construction, and manufacturing industries. In farming, troughs are used for feeding livestock and watering crops. In construction, they are used for drainage and to help direct runoff. Synonyms for troughs include ditches, furrows, canals, sloughs, ravines, and gullies. Each of these terms refers to a narrow, elongated depression or channel that is used for a specific purpose. Depending on the context, the synonym for troughs may vary, but they all refer to a similar feature.
