headrace headquarters • headrail · · · Info · Definitions · Characters · · headrace · · Text Latin · · Script 8 · · Length Definitions · · · (noun) a waterway that feeds water to a mill or water wheel or turbine. · · Noun Definition 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 r latin small letter r U+0072