headwater headwark • headwater erosion · · · Info · Definitions · Characters · · headwater · · Text Latin · · Script 9 · · Length 3 · · Syllables Definitions · · · (noun) the source of a river. Example: "The headwaters of the nile." · · Noun Definition 1 Characters · · a latin small letter a U+0061 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 t latin small letter t U+0074 w latin small letter w U+0077