With emphasis on computational hydraulics and hydrologic modeling, this one-of-a-kind book defines more than 4000 basic terms and phrases related to water conveyance. It is designed to facilitate understanding of the issues in water and wastewater conveyance. Its terms were selected from the most popular textbooks and from actual engineering documents. Its illustrations include detailed references to actual modeling studies, about 100 figures, 150 equations and formulas, and numerous notations. Among the common terms defined and illustrated are several common programs, such as those developed by government agencies and adapted by commercial software firms.