What is another word for headrace?
Pronunciation: [hˈɛdɹe͡ɪs] (IPA) 
Headrace is a term that is commonly used in the field of hydropower and describes the part of watercourse leading up to the turbines. Synonyms for this phrase include penstock, penrace, and canal. A penstock is one of the most frequently used terms as it is typically applied in reference to the tube or pipe which carries water to the turbines. On the other hand, the terms penrace and canal are used to refer to the channel or canal that carries the water to the turbines. Other synonyms for headrace include sluice, raceway, or flume. All of these words refer to the various water channels or pipes that direct water to the hydropower plant.
